Jewell Pattern 444 User manual

e..A.DIO

SERVICE

ILLIŒAL

e

IIIIMIMIIMIIIMUIIIMMEIMMIIIIIIMIIIMIIIIMMIMIIIIIIIIIIMIMIIIIII

Its

The

Most

Complete

Set

Tester

Ever

BO

The

Jewell

Pattern

444

Set

Analyzer

tests

every

circuit

in

eny

set,

including

those

using

variable

mu,

and

output

and

radio

e-

quency

pentode

tubes.

Pattern

444

Set

Analyzer,

complete

with

all

accessories.

Jewell

Data

Service

and

data

pad.

List

Price $ 112.00

Servicemen's

Price $84.00

•

An

improved

switching

system

for

selecting

circuit

tests

separates

all

A.C.

and

D.C.

tests.

This

speeds

testing

and

greatly

reduces>

the

possibility

of

securing

incorrect

readings.

In

addition

to

all

the

voltage

and

current

measuring

ranges

beg

available

at

time

saving

jack

terminals,

a

triple

range

output

meter

circuit

and

a

triple

range

ohmmeter

are

provided

for

use

i.

set

servicing.

A.C.

current

ranges

up

to

8

amperes

are

provided

it

for

servicing

other

household

appliances

such

as

vacuum

cleaners,

oil

burners,

and

electric

refrigerators.

Every

possible

feature

has

been

incorporated

that

will

reduce

wear

and

make

the

instrument

more

sturdy.

The

elimination

of

binding

posts

which

loosen

and

break,

non-shatterable

glass scaie

covers,

and

a

test

plug

and

cable

that

are

separable

from

the

ana-

lyzer

by

a

multi-

plug

at

the

instrument

panel

are

typical

examples.

The

Jewell

Analyzer

Data

Service

is

more

complete

than

ever

this

season,

and

adds

greatly

to

the

value

of

this

instrument.

A

Portable

Oscillator

That's

Reliable!

Pattern

560

Test

Oscillatoi,

complete

with

two

230

tubes,

batteries,

and

portable

triple-

range

output

meter.

List

Price $

102.00

Servicemen's

Price $

76.50

Pattern

560

Test

Oscillator

without

output

mete,

List

Price $

82.00

Servicemen's

Price $

61.50

Pattern

559

Output

Meter

only.

List

Price $

15.00

Servicemen's

Price $

15.00

Radio

frequency

circuits,

whether

in

a

tuned-

radio-

frequency

or

super-

heterodyne

receiver,

must

be

accurately

adjusted

to

obtain

the

greatest

sensitivity

and

selectivity.

The

Jewell

Pattern

560

Test

Oscillator

and

559

Output

Meter

are

designed

and

built

to

meet

the

needs

of

the

radio

servicemen.

The

simplicity

of

operation,

hair

line

accuracy,

and

assured

relia-

bility

are

unequalled

features of

this

portable

test

oscillator.

The

Jewell

Pattern

560

Portable

Test

Oscillator

covers

the

com-

plete

broadcast

band

from

550

to

1500

K.C.,

and

the

complete

intermediate

frequency

band

from

125

to

185

K.C.

The

Jewell

Test

Oscillator

is

adequate

for

testing

and

adjusting

every

super-

het

receiver

built

today

and

provides

for

future

design

in

that

it

covers

the

band

from

125

to

185

K.C.

Write

for

a

bulletin

describing

the

complete

Jewell

Radio

Service

Instru-

ment

Line.

You

can

pay

for

them

from

your

extra

profits.

sZi

Jewell

Electrical

Instrument

Co.,

1642-V

Walnut

St.,

Chicagoei

•

e

OFFICIAL

RADIO

SERVIE

-

haAAJAL

JI

Li

1,,a11:2=- -,.

17

.1:12.-.

1

""

1

.2111":E"le!lellmmll!llallm"IllmilmmIrlmernm"mm

,

--

1-

- -‘

INDEX

TO

COMMERCIAL

WIRING

DIAGRAMS

wiEni

the

issuance

of

each

set

of

suppl

emen

ts, a

corn

pletely

revised

and

up-to-date

index

is

furnished.

To

use

this

TH

remove

all

of

the

pages

from

the

cover;

throw

away

the

old

index

pages

and

replace

them

with

the

new

ones;

and

then insert

the

supplement

pages

in

their

numerical

and

alphabetical

order.

Then

replace

the

cover

and

the

book

is

complete.

,

Oft",

the

trade

name

of

a

set

is

known

by

the

user

of

t

his

book

but

the

name

of

the

manufacturer

not

known.

ching

for

diagrams,

if

the

particular

diagram

you

desire

cannot

be

found,

be

sure

to

look

through

the

Mis-

cellaW

section

at

the

end

of

this

index.

If

it is

not

listed

there

look

through

the

Trade

Name

Index;

this

gives

the

name

of the

iiufacturer

for

each

trade

name.

Since

all

diagram

s

are

listed

in

the

index

in

alphabetical

order

ire

accordance

with

theimanufacturers'

names,

it is

absolutely

necessary

to

know

the

name

of

the

manufacturer

before

a

particular

diagram

can

be

found.

In

i

the

supplements

are

included

diagrams

for

which

we

have

received

requests.

Wherever

the

diagrams

that

have

beep

requested

are

not

included

in

one

set

of

supplements,

th

ey

will

appear

in

the

first

set

published

after

we

receive

thei,

Many

diagrams

of

obsolete

sets

are

difficult

to

obtain,

but

we

are

using

every

possible

effort

to

procure

them.

We

wish

to

express

our

thanks

to

the

many

subscriber

s

who

have

taken

such

extreme

interest

in

the

MANUAL,

anesfcial1Y

to_those

who

have

voluntarily

submitted

diagrams

for

publication

in

the

supplements.-

THE

PUBLISHERS

:

W4érTAGE

OF

RECEIVERS _

76N

PHONO

-

RADIO

INSTALLATION

76M

R.41/11

A.

COLOR

CODE

76M

MgTER

MULTIPLIERS _

76P

• A

A.

C.

DAYTON

CO.

XL-

20;

XL-

25;

XL-

30 ____

77

X,L-61;

AC-

66 ___________

78

AC-

63;

AC-

65

79

XL-

5;

Navigator,

Navigator

Power

P.

80

XL-

10;

XL-

70

80A

XL-

60;

XL-

50A.

C.

80E

ACME

ELECTRIC

CO.

Model

S.G.

88;

A.C.-7

81

ALL

AMERICAN

MOHAWK

CORP.

6

and

8

tube

A.C. "

W"

Power

Pack

82

Lyric

models

60,

61, 62,

65

and

66

82

Lyric

models

80,

83, 84, 85, 86,

88 82

70,

73

and

75;

No.

90

chassis,

60

cycle

83

No.

90

chassis,

25

cycle;

No.

96

chassis,

60

cycle

84

Mohawk

one

dial

battery

and

A.C.

226-227

85

Model

D.

Lyric

Receivers

84A

*Model

44;

Model

H

84B

ip

All

American

Lyric

B-94

358C

áLLIED

RADIO

CO.

111(Same

as

Columbia

Radio

Co.)

AMERICAN

BOSCH

MAGNETO

CORP.

16

Amborola;

27

Amborada;

46

The

Little

Six;

57

and

87

86

Cruiser,

Royal

Cruiser

and Im-

perial

Cruiser

model

35

bat-

tery

sets

87

Models

66, 76,

and

76L

the

Cruiser;

Models

66AC,

96,

116,

136

fur

A.C.;

Model

107

for

A.C.;

Mode's

126, 146,

166,

176,

46A.C. 88

Model

96

D.

C.

110

V.

Cruiser;

Model

156

Cruiser;

Model

28;

Model

825

Super

Dynamic

Power

Pack

89

Models

48

and

49;

Type

BAN

edition

2

Nobattery;

Type

BAN

edition

3

and

4

Nobat-

tery;

Types

BAN

edition

5

and

6

Nobattery

90

Model

54

D.C.

receiver;

Bosch

•

Motor

Car

receiver

91

Model

58,

59

90A

Model

61,

62 _

90B

•

Model

60

Volume

Control

Re-

ceiver

90C

Model

5

90D

Model

60

and

61 (

Automatic

Volume

Control)

90E

Model

62-D

C.

Model

63-D

C.

AMERICAN

TRANSFORMER

CO.

PF

250

Power

Amplifier

3

ABC

ni

Power

Box

2-

AP

amplifier

and

21-D

Hi

Power

box

3

Amertran

Concert-Hall

Ampli-

fier

type

25A;

Approved

Audio

Circuits

3

Plate

Supply

Transformer

Connections

AMPERITE

Line

Voltage

Con-

trols

for

Standard

Receivers

AMRAD

CORPORATION

Neutrodyne

A.C.-5;

Model

D.C.-

6;

Model

A.C.-6

Concerto

Nocturne

Model

D.C.-7;

Model

A.C.-7

Model

80, 82,

and

83;

No.

7100;

No.

S-522

3500-2;

2500-1;

S-733;

7191

power

unit;

No.

3590

Amrad

model

81 (

Bel

Canto

Series)

96

APEX

RADIO

CO.

See

U

S.

Radio

and

Television

Co.

ARGUS

RADIO

CORP.

B-195;

B-125

326

ATWATER

KENT

MANUFACTUR-

ING

CO.

Model

10;

Model

10B;

Model

20

compact;

Model

12;

Model

19;

Model

20 97

Model

21

dry

cell;

Model

32;

Model

36

with

condenser

vol-

ume

control;

Model

36

with

resistance

volume

control

98

Models

30, 33, 35,

48

and

49

99

Model

37;

Model

38;

and

power

unit

100

Models

40,

42

and

52;

Model

44;

and

power

unit

101

Model

41;

Model

43

102

Model

50;

2nd.

type

power

unit

for

Model

41;

3rd.

type

power

unit

for

Model

41;

2nd.

type

power

unit

for

Model

44

103

Model

55

and

55C

104

3rd.

type

Model

60-C

328

AUDIOLA

RADIO

CO.

Series

31

104A

Superheterodyne

receiver

104B

AUTOMATIC

RADIO

AND

MFG.

CO.

"Tom

Thumb"

Portable

340

AUTOMOBILE

RADIO

CORP

TR-106;

N

R-109

75

•

1111111:111::11113

111111111111811111MI

I

L7•7"

.

":"

BALKITE

PRODUCTS

COMPANY.

Model

C;

Model

F

105

Models

A-3;

A-5

and

A-7

362

(A &

B

Eliminators)

Balkite

BX;

Combination

KX;

AB6-135

Form

A;

AB6-135

iii

Form

B

104A

_ .

a“e“iMIlillillillilliliMIMIllilllIlrillliMlillrilliMlillililiiIIIIIIIIiiiiiill

90F

B-180

Form

B;

B-185;

BY;

BW

90G

or

B

Model

D;

B-11 ____

104B

Socket "

A"

supply _______

23

34

6-180

Form

A

26

BREMER-TULLY

MFG.

CO.

B-

T

Counterphase

6;

Counter-

42

phase

8;

6-40

power

converter

106

6-40

circuit

diagram;

8-20A ______

107

7-70

and

7-71

108

34A (

Also

see

Brunswick)

BROWNING-

DRAKE

CORP.

334B

Model

34,

36

and

38 ______

350

MB-

30

108A

761

Model

69;

Models

70 &

71

108B

BRUNSWICK

BALKE

COLLENDER

CO.

Models

14,

21

and

31

S.P.U. _

109

92

Model

31

combination

radio

93

and

Panatrope

110

RPA-1;

RPA-4

265

94

Models

3

and

10

267

BRUNSWICK

RADIO

CORP.

95

Bremer-

Tully

Models

81 &

82 __

110A

Bremer-

Tully

Models

S81 &

S82-25

cy;

Brunswick

S14

&

S21;

Brunswick

Panatrope

S31

Bremer-

Tully

S81 &

S82-60

cy;

Brunswick S-14 &

S21-

60

cy. •

Model

5NO (

SPU

X-900,

Chas-

sis

X-1101

Panatrope

3NC8 (

Chassis

X-

1103,

SPU

X-901)

Model

3KR8 (

SPU

X-355,

Chas-

sis

X-822)

SPU

X-341 (

used with

5KR,

5KRO &

3KRO),

SPU

X-341

&

dynamic

spkr. (

used with

3KR6 &

5KR6

Chassis

X-801 ( used

with

5KR,

5KRO

2KRO &

5KR6);

&

dynamic

spkr. (

used

with

panatrope

combinations

and

3KRO &

3KR6)

Chassis

X-1104 (

used

with

panatrope

combinations

and

3NW8);

SPU

X-902 (

used

with

3NW8)

110B

110C

110D

110E

110F

110G

110H

110I

Models 15 &

22;

Model

R-1 ___

110J

Model

B-15

"

Uni

-

Selector" _____

110K

Model

D.C.-15

110L

BUCKINGHAM

RADIO

CORP.

Model

80

348

BUSH

AND

LANE

PIANO

CO.

No.

10

DeLuxe;

No.

12

S.G

111

CANADIAN

MARCONI

CO.

Type

XIV

D.C.

360

Tuner

Unit

Types

XV.

XVI,

XVII,

XVIII

A.C.;

Power

Unit

XVI

_ _ _

361

Model

20 A.C.

Chassis

362

Model

20

A.C.

Power

Unit

363

11Irf•

FFIC

IAL

RADIO

SERVICE

MANUAL

5

1,

"111111Ellmllt1

Model

21

A.C.

Chassis

364

Model

21

A.C.

Power

Unit

365

Model

22

A.C.

Chassis

366

Model

22 A.C.

Power

Unit

367

Model

23

A.C.

Chassis

368

Model

23 A.C.

Power

Unit

369

Model

19

D.C.

370

Model

28-29

373

Model

70

374

Model

80,

60

and

25

cycle ____

375

Model

89

376

Model

90

377

Model

99 378

Model

110

379

Model

120

380

CANADIAN

WESTINGHOUSE

CO

LTD.

Model

55,

W55A,

W57,

W60,

W58

371

6-

Tube

A.C.

Chassis

1928

model'

and

200B

loud

speaker;

No.

E

18

SPU

372

CAPEH

ART

CORP.

rl

See

Webster

Elec.

Co.

Page .._

350

CLEARTONE

RADIO

CORP.

Goldcrest

Model

60;

Model

80

112

Clearodyne

Model

70;

Clear

El

tone

Series

100

113

Model

110

compact;

Model

112

114

COLONIAL

RADIO

CORP.

Model

31 A.C.

115

31

and

32

D.C.

116

32

A.C.

117

33 &

34

A.C.

Remote

Control

330

Model

33

D.C.;

Model

16

116B

COLUMBIA

PHONOGRAPH

CO.

(see

Kolster)

6

tube

A.C.

set;

7

tube

A.C.

set

118

Columbia

C-5

and

Kolster

K-24;

C-5

Substitute

119

Models

930-300;

Model

931

120

Model

902;

Type

950

radio

and

phonograph

combination

121

Models

900 -

801;

Model

961

122

Power

Pack

for

model

980;

6

tube

D.C.

set

C6-

C7

123

Type

980

radio

and

phonograph

combination

124

COLUMBIA

RADIO

CO.

Screen

Grid -

8

125

Screen

Grid

8

receiver

118B

CONTINENTAL

RADIO

CORP.

Models

Ten

29-A

and

B

with

171-L

Power

Unit;

Model

9

126

Slagle

29-C;

Slagle

29-A &

B

127

Ten

29-D and

C

with

250-L

power

unit

128

All

Models

129

CROSLEY

RADIO

CORP.

AC-

7

and

AC-

7C

130

Model

3B

and

3C;

Trirdyn

3R3;

5-38;

Type

V;

Model

51;

2-

stage

A.F.

amplifier

for

type

V;

Model

XI

and

XL .

131

Model

4-29;

Models

30S,

31S,

33S,

34S;

Models

40S,

41S,

42S,

82S

132

Models

40S, 41S,

42S,

82S,

ar-

ranged

for

M

type

speaker;

Model

401;

Model

608

133

Models

60S,

61S,

62S,

63S;

Jewelbox

704-A ______

134

Model

601

135

Jewelbox

704-B;

Showbox

1

706 136

Jewelbox

704;

Gembox,

Gem-

chest

610-609

A.C.:

804

A.C.

137

Jewelbox

706;

Models

20,

21,

22;

Model

RFL-90

138

Models

41-A &

42-

AC;

6-20

and

6-85

139

Bandbox

Jr.

401-A;

602

Band-

box;

Buddy

and

Chum

140

Model

54 -

New

Buddy

Midget

354

Wigit model

48

358A

Model

58;

Model

77-1

138A

Model

91

138B

Model

55;

Model

56

138C

Model

26;

Model

59;

Model

76

138D

E

EJ

rl;i1

remnamar

,

ricumnraunisnionnutuunanuasnataimmumr.

Model

120

Super

-

Sondo,

Super

-

Rondeau

and

Super-

Admin-

istrator

Receivers

138E

Model

77;

Model

84;

Super

Bud-

dy

Boy

138F

D

DAY-

FAN

ELECTRIC

CO.

See

General

Motors

Radio

Corp.

DeFOREST-CROSLEY

LTD.

DC-

5

compact;

C-6

compact;

Conway

and

Hastings;

War-

wick

and

Windsor

381

Balmoral

and

Berwick;

Band-

box

Jr.;

A.B.C.

Power

unit _

282

Barcarolle

and

Minute;

Etude

and

Symphony;

Electric

Hastings

383

First

Series

Symphony;

Elect-

Berwick;

Second

series

Sym-

phony;

Nocturne,

A.C.;

Con-

certo,

Sonata

and

Opera

384

Types

400-420;

410

385

ARIA

and Troubador

models

Aria

and

Trobbador

models

type

740;

type

750

Type

800

Chassis;

Type

810

Chassis

Type

810

Phonograph;

Type

700

DeFOREST

RADIO

CO.

CS-

5;

F-5;

D-

ri

DELCO

RADIO

CORP.

"Police"

Short

Wave

Set

Delco

Automotive

Radio

E

EARL

RADIO

CORP.

See

Chas.

Freshman,

Inc.

ELECTRICAL

RESEARCH

LABORA-

TORIES

Erla

model

224

screen

grid

142A

Erla

model

225

142B

Model

271

Midget

142D

THOMAS

A.

EDISON,

INC.

(Also

see

Splitdorf )

R-4,

R-5

and

C-4

141

R-1,

R-2 and

C-2

Chassis

Jr.

and

Je;

Model

C-1

chassis

SC

142

RT-1,

R-2

and

C-2

chassis

Jr.

and

Cr

(

25

cycle)

143

Models

R-6 &

R-7

140B

Models

R4, R5,

D.C.

140D

ELECTRAD,

INC.

Loftin-

White

amplifier

63

Type

250;

and

250

Push-

Pull

358B

EMERSON

RADIO &

PHONOGRAPH

CORP.

Model

F

356

386

387

388

353

76A

184

F.A.D.

ANDREA,

INC.

FADA

RESISTORS

AND

CONDEN-

SERS

76N

Fada

10,

11,

30

and

31 - 60

cy.;

10Z,

11Z,

30Z,

31Z -

25

cy.;

16,

17

and

32 -

60

cycle;

16Z and

32Z -

25

cycle

144

Fada

18

D.C.;

Fada

22

battery

145

Fada

20

A.C. -

60

cycle;

20Z

A.C. -

25

cycle;

25

A.C. -

60

cycle;

25Z

A.C. -

25

cycle _

146

25

and 25Z

with

M-250

and

M-

250Z

Electric

Units;

35

A.C. -

60

cy; .

35Z

A.C. -

25

cycle

147

Fada

40

A.C.

60

cycle

using

P-250

Elec.

Unit

and

7-A

speaker;

Fada

50, 70,

71

and

72

148

E-420

Electric

Unit;

E-180

Electric

Unit;

192-A

receiver,

192-S

and

192-

BS

Units

149

"7"

A.C.;

75

and

77

A.C.

60

cycle

150

Special

model

265--A

and

Fada

"7"

model

475..A

151

460-A

receiver

and

R-60

unit;

R-

80-A

unit,

480-A

or

SF

50/80A

152

"Special"

A.C.

receiver

265

UA

or

CA

and

RP-

65

-

UA

or

CA;

262

-

UA

or

CA

and

RP-

62

-

UA

or

CA;

480-B

and

SF

50/80

B

1&7;

"ABC"

6

volt

supply

types

66-0

and

62-R; "

ABC"

6

volt

supply

types

86-V

and

82-W;

Type

J

unit;

Type "

C"

unit

used

with "

special"

and

7

AC

154

Fada

KA

-6

Chassis fox

models

42,

44,

46,

41,

47

154B

Fada

5-

tube

Neutrodyne;

160

neutrodyne -----------------------------

154A

FEDERAL

RADIO

CORP.

Ortho-Sonic

type

D;

Series

Filament

type

D;

155

Model

K

156

Series

Filament

type

F;

Ortho-

Sonic

type

H

157

Series

Filament

type

E;

Type

M

158

FEDERATED

PURCHASER

Melorad

Cathedral

Tone

365

FREED-EISEMANN

RADIO

CORP.

Model

NR-

6;

Model

NR-

7;

Model

NR-

9 -

9A

159

Model

10;

Model

NR-

11;

Model

NR

12

160

Model

FE-

15;

FE-

18;

NR-

20;

NR-

60

161

Models

30,

40

and

48;

Models

30N,

40N

and

48N;

Model

50

162

Model

130;

Model

NR-

215,

NR-

400;

English

long

and

short

wave

set

163

Model

457

Power

Unit;

Model

NR8ODC

164

Model

90S

AC;

Model

NR-

95

AC;

470 165

Model

NR-

85;

Model

53;

Model

800

166

CHAS.

FREEMAN

CO.

INC.

Earl

models

21

and

22;

Earl

models

31

and

32

167

QD-16S;

Model

N

168

Model

G;

Model

G

power

pack;

Model

G

with

G60-

S

power

supply

169

Earl

model

41;

Freshman

model

M

with

M-

60-S

power

supply

170

New

and improved

Masterpiece;

Equaphase;

Model

H-9

171

Combination

K

and

K-

60-S;

QD-16S

172

Q-15

and

Q-16;

2N

and 2N-

60-S

173

21AC

and

22AC;

3Q-15

and

3Q-16

174

Model

121;

Model

21

D.C.;

Earl

models

33,

31

and

24

DC

175

32

and

32

AC;

31-

SAC

and

32-

SAC

and

Earl

33-

SAC;

41AC

176

G

GENERAL

ELECTRIC

CO.

H-31

266A

H-71

266B

H-51

266D

General

Electric

Models

G.E.

Jr.

No.

S-22,

G.E.

Jr.

No.

S-

22X

and

S-42

266G

Models

H-31;

H-51

and

H-71

266H

GENERAL

MOTORS

RADIO

CORP.

Day-

Fan

OEM-

11;

OEM-

7;

OEM-

7

super

selective;

5-

tube 1925

model

177

Day-

Fan

Five "

5044"

178

Model

5055

358A

Day-

Fan

Five

Twenty

Seven

5-

tube;

Six -

6

tube;

Seven

7-

tube

179

Day-

Fan

6-61 -

6-

tube;

6B -

6-

tube;

6

Junior

6-

tube;

6AC

6-

tube

180

5AC -

5-

tube;

Model

35

7-

tube;

6AC

Power

Set;

6

Junior

AC

Power

Set;

110

Volt

D.C.

6-

tube;

Motor

Generator

Set

181

32

volt

D.C.

set

6-

tube;

Motor

Generator

and

Filter;

Power

Supply

for

5-

tube

AC

set;

ettiMi

"

Le.

ae

d

i.

6 0

FrIC

IAL

eilDIO

SERVICE

MANUAL

r

virlrmr

,

gr,Immr

rrmertmlIzmem

,

mmilinelmmimL

-

Timm•me:mram.

,

1171.11

.1

fi

Ei

rl

EJ

El

Power

Supply

for

6-

tube

-

AC

set;

B

and

C

Power

Supply;

a

Power

Supply

for

No.

5524

and

No.

5625

8-

tube

Model

5077;

8-

tube

Model

5080;

8-

AC

Power

Set

General

Motors

Model "

A"

chassis;

Delco

Automotive

Radio

sGILFILLAN

BROS.

INC.

Li

A.C.

Model

60;

A.C.

Model

100

GRAYBAR

ELECTRIC

CO.

Model

311 ______

M

700

770

ei

Graybar

No.

8

Midget

=1

E1

Graybar

Models

700,

770,

900

L-

El

A.

H.

GREBE &

CO.

e:

R.F.

Amplifier

type

HORN;

El

"

13"

Regenerative

Receiver;

Stu,

rt

Wave

type

CR

-

18;

Short

Wave

type

CR

-6

Synchrophase

type

MU-

1;

Broadcast

Receiver

h

Super

Synchrophase

ty

d

Synchrophase

7-

AC

Synchrophase

7

1

Super

Synchrophase

A.C.-SK'-4

B &

C

Socket

power

type

671-

B

Synchrophase

type

AH

-1

1

E-

GRIGSBY-GRUNOW

CO.

Majestic

Models

60-70-80;

7BP3

Power

Unit;

7BP6

Power

Unit

Models

90,

91

and

92;

9P

3

Pow

-

er

Unit;

9P6

Power

Unit;

Model

70B

chassis

in

72

Set

Model

100;

90-B

Model

100-B; 180

and

181

7P6

and

7P3

Power

Unit (

old

wiring)

7P6

and

7P

3

Power

Unit

8P6

and 8P3

Power

Unit;

P.U.

System

in

130-A

Super

Screen

Grid

chassis

Super

Screen

Grid

chassis

in

model

130-A;

in

Model

230-A

Majestic "

B"

eliminators

Majestic

Models

50,

51

and

52

Supers

GULBRANSEN

COMPANY

Model

C

9-

in-

Line

Champion

Junior

Model

724;

8-

Tube

186

187

pe

SK-

4;

188

189

188A

188B

190

191

192

193

194

195

196

26

192B

197

196G

196H

H

ifT

,

MI%

iffle"Minnin

If

I 1

6

Tube

Set 507

and

508;

A.C.

7-

tube

set

inductance

tuned;

"A"

chassis

510,

511, 514,

182

516

8-

tubes

198

Power

Unit K-50

for

sets

No.

183

524, 525,

527,

528;

Chassis

"B"

515,

519,

521

199

623

and

526

with

power

unit

184

No.

245

200

Wave

Master;

RFL

7-

tube

Cas

-

185

cade

201

Models

533, 534, 536,

536

200A

338

266A

266B

266D

266G

266H

HAMMARLUND

MFG.

CO.

HI-

Q

30

A.C.

51

HI-

Q

31 A.C.

356

HORN

RADIO

MFG.

CO.

Model

15

458D

HOWARD

RADIO

CO.

Model

SG-

A

196A

1

Model

8

Green

Diamond

diags.)

196B

p.,

Model

SG-

B

Midget

196C

FA

Model

SG-

C

196D

EI

il

e.

INSULINE

CORP.

OF

AMERICA

A.C.

Short

Wave

Set

340

(3

JACKSON

BELL

Model

62

Midget ----------------------

354

JENKINS &

ADAIR,

Inc.

Microphone

Mixing

Panel

Type

3-B;

Monitor

Panel;

Level

Indicator

Panel

196E

Type "

A"

Amplifying

Panel;

Type "

D"

amplifying

panel._

196F

JESSE

FRENCH &

SONS

PIANO

CO.

Junior

Model "

G"

355

KELLER

FULLER

MFG.

CO.

LTD.

Radiette

Model

14F

355

Model

FIFTY,

Model

SIXTY

328B

KELLOGG

SWITCHBOARD

AND

SUPPLY

CO.

COLIN

B.

KENNEDY

CORP.

Model

281;

110;

220

202

Model

6

type

420;

Model

15

type 430

and

431

203

7

Cornet

D.C.;

Type

435;

Model

20

type

440;

Model

521

and

525

204

Model

10;

Model

20

205

Kennedy

Model

826B

Combina-

tion

204A

Royal

80;

Models

30

and

32

204B

KING

MANUFACTURING

CORP.

Model

101(1

Neutrodyne,;

25

Neutrodyne;

71

Neutrodyne;

30

T.R.F.;

61

T.R.F.;

62

T.R.F.

206

Model

E

and

80A;

Model

80;

Model

81

207

Model

F;

Model

82

and

power

pack

208

Model

J;

Model

H

209

Model

97;

Model

98;

King

Mon-

arch 210

Model

G;

Power

pack

wiring

King

Royal,

Imperial,

and

Monarch

211

KNAPP "

A"

POWER

UNIT

359

KOLSTER

RADIO

CORP.

Columbia

type

930;

Kolster

6K

212

Kolster

6-

tube

receiver;

7-

tube

A.C.

set

(

Brandes)

213

Kolster

8A-

B-

C;

6H;

7A

and

7B

214

K-44;

K-43

215

K-45

216

Brandes

B10;

B15;

B16

217

Tuning

chassis

for

7-

tube

sets

used

in

K-21, K-23,

K-24

and

K-28;

4-

tube

chassis

used

in

K-20, K-22,

K-25

and

K-27;

Power

supply

and

amplifier

unit

in

K-24

218

K-20, K-22,

K-27

&

K-37

218A

K-42;

K-30 &

K-32

218B

LAFAYETTE -

See

Gulbransen

and

Wells

Gardner.

C.

R.

LEUTZ,

INC.

Trans-

Oceanic; "

Seven

Seas"

console

338

LINCOLN

RADIO

CORP.

Model

31

357

Lincoln

DC-

8

358C

MAJESTIC

(See

Grigsby-Grunow

Co.)

MASTER

RADIO

MFG.

CO.

LTD.

Master

Model

424

355

McMILLAN

RADIO

CO.

Series

900;

8-

AC

Power

Set

219

MILLS

PHONOGRAPH

CO.

Mills

phonograph

218C

Phonograph

diagrams

with

ex-

tra

speakers

218D

MONTGOMERY

WARD &

CO.

5

tube

S.G.

battei

y

sets

Nos.

1522 &

1562. (

Wells-

Gard-

ner);

7-

tube

A.C.

S.G.

sets

Nos.

2822_

2827, 2895,

2897.

(U.S.

Rad.

&

Television

Co.)

8

tube A.C.

S.G.

sets

Nos.

2955

&

2957. (

Wells

Gardner);

8

tube

A.C.

S.G,

sets

Nos.

3035,

3037,

3065,

3067. (

U.S.

Rad.

&

Television)

218M

218N

N

NATHANIEL

BALDWIN

CO.

Screen

Grid

Model

80

324

NATIONAL

CARBON

CO.

INC.

Eveready

models,

1,

2

and

3;

series

50

220

Eveready

series

30,

30-C

and

40

221

NATIONAL

TRANSFORMER

CO.

Midget

Six

358E

Screen

Grid

8

358F

PEERLESS

(See

United

Reproducers

Corp.)

PHILA.

STORAGE BATTERY

CO.

PHILCO RESISTOR

AND

CONDENSER

DATA

76-0

OSCILLATOR

CIRCUIT

FOR

175

OR

260

K.C.

76-0

Philco

Model

40;

Model

41

222

Model

65;

Model

76

223

Models

77 &

77A; 86 &

82

224

Model

87

225

96 &

96-A;

296 &

296-A

226

Models

511, 521,

512,

513, 514,

515,

531,

551,

571;

Model

95

227

"A" & "

B"

Eliminators "

DB"

& "

B"

part

of "

DAB"

socket

powers;

180

volt

B

and -

14t

part

of

180V.

AB;

Types

B-

603 &

B-253;

AB-

663,

AB-,

623,

AB-

463,

AB-

423

226A

Philco

Set

Model 65; "

Baby

Grand"

20 &

20A

226B

Socket "

A"

supply

23

AB-

656 &

AB-

652

25

Models

92, 95,

95e,

96A,

96E,

296,

296A,

296E

226C

Models

111

and

111-A

226D

Models

220

and

220-A

226E

Models

211

and

211-A

226F

Philco

Model

30

358C

Models

56

and

46-E

226G

Models

111

and

111-A

22611

Models

112

and

112-A

2261

Models

112

and

112-A

Radio-

Phonograph;

Models

270

and

270-A

226J

Models

70

and

70-A

226K

Models

90

and

90-A

226L

PIERCE

AIRO,

INC.

AC-

24-45

352

De

WALD

Model

A.C.

524

355

Pierce

Airo

DeWald

D.C.-632

358C

PILOT

RADIO

AND

TUBE

CORP.

PE6;

K-113

power

amplifier;

Pilotone

Electric

6-

tube;

Super

Wasp

228

Pilot

Automotive

Radio;

Grimes

110-

volt

D.C.

New

Yorker;

Twin

S.G.8

229

K-106;

K-108;

S.G.-105

230

A.C.

Super

Wasp

73

Pilot

Midget

354

Pilot

Universal

Super

Wasp

358D

PRIESS

RADIO

CO.

Models

R

and

C

nine-

in-

line

supers

357

R C

A-VIC'eOR

CO. (

Victor

Div.)

Alhambra

I (

7-1);

Electrola

Cromwell,

Borgia

II

231

Electrola

9-25;

Electrola

9-40

232

Electrola

Hyperion;

Alhambra

II

and

Florenza;

Radiola

25

Catacomb

far

Alhambra

II

(7-2)

and

Florenza (

9-1)

233

Models

7-3,

7-30

and

R-20;

Electrola

Radiola

7-26;

Vic-

tor

Radiola

16

234

10-70;

AP-

777C;

Catacomb,

Radiola

28;

12-15;

12-25

235

AP-

962

and

AP-

997;

Victor

Radiola

18;

AP-

974-A;

951-A

and

997-A;

12-15

236

Victor

Radiola

17 (

in

model

7-25);

9-15 _

237

i

ti

king;

Liffill1111118811118

lulus

OFFICIAL

RADIO

SERVICE

MANUAL

6A

'7

,

11r

***

Mrn••••N.le.,gr

AP-

736;

AP-

997C;

Model

9-55

238

Electrola

Radiola

9-54;

Auto-

matic

Electrola

10-69;

and

"

power

wiring

239

R-32,

R-42,

RE-

45,

RE-

75,

10-69;

10-51

240

AP-

947 (

RPA-1A);

AP-

952

and

AP-

997 (

RPA-5

and

RPA-5

special);

Electrola

Radiola

9-18

241

7-26;

Radiola

9-54;

Electrola

10-'70

242

Victor

Radio

R-14

242A

Victor

Radio

R-15

266D

Victor

Micro-

Synchronous

Mod-

els

R-35,

R-39,

RE-

57

266E

Radiola

Division

RCA

Centralized

Radio

System

49

Radiola

Senior;

Radiola

RS;

Radiola

III;

Radiola

AC

Am-

plifier;

AR;

Balanced

Am-

plifier,

Radiola

VII

243

Radiola

V;

VI;

II;

IV

244

Radiola

IIIA;

IX;

Superhetero-

dyne;

Radiola

Grand

245

Radiola

16;

AP-

937;

VIIB

246

Radiola

20;

Radiola

30 247

67

248

Super

VIII (

AR-

810), "

semi-

portable" (

AR-

812),

24

and

26 249

Radiola

25

250

46

D.C.;

33

251

Radiola

17;

Radiola

60;

Radio-

la

18

252

33

D.C. _____ _

253

28 (

battery

operated);

loud-

speaker

104

RPA

unit

254

47

255

Radiola

64;

AP-

951;

AP-

935

256

Radiola

41;

Sterling

SPU;

Re-

ceptor

SPU;

Loudspeaker

105

257

Radiola

67

258

Radiola

47

259

Radiola

50;

51 260

41

D.C.;

51

D.C.

261

18

D.C.;

62

262

Radiola

66

263

30-A

25

cy;

21 &

22;

30A

RPA

Unit

264

Brunswick

RPA-4

with

Pana

-

trope

and

panel

connection

8-

tube

panel);

RP1A

with

Panatrope

and

panel

conn.

265

Radiola

44

chassis;

32

RPA

unit

266

Radiola

44;

Mod:els

3 &

10

(Brunswick)

267

RCA

R-80

266A

RCA

86

266B

Audio

frequency

circuits (

86)

266C

RCA

82

266D

Radiola

28

A.C.;

RCA

Loud-

speaker

106 _

266F

Radiola

48,

same

as Victor

15

266D

Radiola

42

242A

Radiola

24

and

104

power

speaker

242B

RCA-

Victor

Radiola

"

Super-

ette"

Model

R7 _

266G

Models

80,

82,

8r3

266H

RADIO

SERVICE

OSCILLATOR

76J

REMLER

RADIO

CORP.

45

KC

Superheierodyne

340

Came,o

Model

14

354

ROBERTSON-DAVIS

CO.

Melo-Heald

11-

tube

Superhe-

terodyne

357

SEARS,

ROEBUCK &

CO.

Silvertone

Models

F,

G,

H,

J,

same

as

King .

207, 208,

209

Silvertone

F,

FF,

G,

H,

J

200B

SILVER-

MARSHALL,

INC.

Models

30 (

chassis),

60

Lowboy,

95

Highway

and

75

Concert

Grand

268

720

A.C.

59

S.M.

690

Public

Address

System

340

MtvisMerlerrIMMUMMIIMITIMMTUTM1127

_ •

MCIMMT11111111.11nrgli

-j

33-A

power

supply (

25 &

60

cy.);

1929

9-

tube

S.G.

sup-

heterodyne

268A

heterodyne

-

Model

34-A;

Model-

35-A

268B

Silver

Marshall -

Super

with

Model

36A

Chassis

and

32A

Power

Pack

268C

722

Band

Selector

7;

SM-712

Tuner;

724

A.C.

Receiver ____

268D

Model

714

Superheterodyne;

Models

37,

38

and

39-----

-

-----268E

SONORA

PHONOGRAPH

CO.

INC.

Modél

2RP-25

269

3R

and

4R ____ _ _______

270

3

RP .

271

5R

272

7P

273

B-31 (

25

cycle);

Phonograph

automatic

stop

274

SPARKS-WITHINGTON

CO.

Sparton

Model

39;

89A

275

49;

9-30 ____ _

276

931

and

301

D.C.

277

6-26,

6-16;

A.C.

62-63 &

A.C.

7

278

A.C.-89;

DeLuxe

109

279

Sparks

Ensemble

280

5-26,

5-15;

Model

110

281

Sparton

931

A.C. ______

280B

Equasonne

Model

589

280C

Sparton

Model

301

A.C.

280D

SPIEGEL,

MAY,

STERN

CO.

"Melrose"-

same

as

Apex

41

306

SPLITDORF

ELECTRIC

MPG.

CO.

R-200;

PAD-

4;

ABBEY (

with

volume

control

322

ABBEY

Model

171

324

Splitdorf

Model

M5,

R.V.-695

322A

Model

M-6;

R-100

322B

STANDARD

RADIO

CORP.

A.C.

Model

29

342

STEINITE

RADIO

COMPANY

50-A &

102-A

282

991, 992,

993;

261 &

262

283

Model

40

power

pack

28

Power

Pack

Models

40C -

60

-

120C

282A

No.

10

Screen

Grid

Chassis

in

Models

70,

80,

95

282B

STERLING

MANUFACTURING

CO.

No.

4;

No.

4

chassis,

power

unit,

and

speaker

284

No.

4

speaker;

No.

4

power

unit;

No.

3A

chassis

284

Sterling

Midget;

Model "

B"

268F

STEWART-WARNER

CORP.

305-315-320;

300;

310-325;

330;

335-340;

345-350-355-360;

385-390

286

500-520-525;

700-705-710;

530-

535;

715-720

287

Power

unit

models

530-535-715-

720;

Power

units

models

801-

801A-

811-811A -

series

B;

Model

806

series

B

288

Model

750;

950

series

battery

S.G.

289

950

D.C.;

950

25 &

60

cycle

A.C.

290

Models

R-

100A,

AF,

B,

BF,

E,

290A

and ?

F

Series

900 291

STORY

AND

CLARK

RADIO

CORP.

Model

36

tuner

unit;

Model

36

power

pack;

Model

42

and

51

tuner

unit __

290B

STROMBERG-CARLSON

MFG.

CO.

Circuit

D-968;

523 &

524;

635

&

636

292

641 &

642

293

638

D.C.;

652 &

654

294

846

295

403

AA

audio

power

unit,

404

RA

and

404

RAC

SPU;

403

B

audio

pcwer

unit

296

635

D.C.;

601 &

(

112

battery _ _

297

No.

1-B;

403 &

403A

power

pack;

No.

10

and

11

receivers

298

No.

704-B;

501 &

502

299

No.

734-B;

633 &

634 300

No.

14

-

phonograph

diagram;

No.

638

A &

B _____

300A

No.

12 &

No.

14

300E

TELEPHONE

MAINTENANCE

CO.

Teltnaco

P-1

----------------------358

TEMPLE

CORPORATION

8-60, 8-80,

8-90

301

8-61, 8-81,

8-91 _ _ _ _

302

TRANSFORMER

CORP.

biTAMER-

ICA

Clarion

AC-

53,

AC-

55, 25,

51-

25,

53 -

25,

55

328

Clarion

Jr.

Model

60

355

Clarion

Series

90,

-

Models

AC-

90,

AC-

91,

AC-

91A,

26-90

and

25-91

328A

TRAV-LER

MFG.

CO.

Model

6 &

7;

DC &

AC

power

packs ________ _______

UNITED

AIR

CLEANER

CO.

Sentinel

660

9-

tube;

Sentinel

666-C

9-tutie

chassis

for

phonograph

combination

346

Model

444

and

440

7-

tube

SA.

348

Sentinel

104,

for

models

11,

12,

15

and

16

346A

Sentinel

8

and

9;

31-33

and

power

pack

346B

U.

S.

RADIO &

TELEVISION

CO.

(See

Montgomery

Ward &

Co.)

Model

80;

Apex

48 -

60

cycle,

48A -

25

cycle

305

Apex

41 -

60

cycle,

43 -

25

cy-

cle;

42 -

60

cycle,

44 -

25

cy-

cle

306

Apex

46 &

47 -

60

cycle,

46A

&

47A,

25

cycle;

Model

30

Automotive

307

UNITED

REPRODUCERS

CORP.

(Peerless)

Courier "

65"

chas-

sis;

Series

K-70

303

Series

20

Electrostatic

(Kylectron)

304

WEBSTER

ELECTRIC

CO.

2-

Stage

PO.

Amplifier;

Code

6005;

6025-

JD

Amplifier.

350A

3-

Stage

PO.

Amplifier;

6030

-

JE

&

B-37-50

Amplifier

350B

WELLS

GARDNER

CO.

(See

Montgomery

Ward &

Co.)

Wells

Gardner

Co.

Nine-

in-

Line

same

as

Gulbransen -

see

page

197

WESTINGHOUSE

ELECTRIC &

MFG.

CO.

WR5

266A

WR7

266B

WR6 _

266D

Westinghouse

No.

IVR-10

266G

Westinghouse

models

WR-8 &

WR-8R

26611

WILLARD

STORAGE

BATTERY

CO.

"B"

power

units

No.

3095;

4095;

3310 &

4310: "

A"

pow-

er

units

No.

3280; 3262;

3290 &

3390

304A

"A-

B"

units

No.

3301;

6301;

4301

304B

WURLITZER

(See

All

American

Mohawk

Crop.)

ZENITH

RADIO

CORP.

11E &

14E;

11-12-14

308

17-

series

filament;

4R;

ZEIO

power

supply;

ZE-5

power

supply

for

model

17

309

33X &

362X

6-

tube

electric;

34P &

342P

6-

tube

electric

310

Model

27;

31 &

32

311

ZE

4 "

13"

power

supply;

ZE3

"A"

power

supply;

models

332

4

P

H

nilitIMIL1111M1111111111111111111111U111111111111illuutiii111111111WIIMMIMIIIIMMIMIIIMIMillliiIMIIII

6B

OFFICIAL

RADIO

SERVICE

MANUAL

•

..ellittl!litItriin:rrjr1111?.

33-34-35;

35A-

342-352-352A-

362

312

35P-35AP-352P-352AP;

37A

313

ZE14

power

supply;

ZEll

pow-

er

supply;

ZE13

power

sup-

ply;

ZE15

power

supply

314

39-

39A-

392-392A;

40A

315

35PX-35APX-352PX-352APX-

37A;

333-363A

6-

tube

D.0

set ___,

316

ZE17

power

supply;

ZE18

pow-

er

supply;

Models

60,

61, 62,

602,

612 &

622

without

loop;

64, 67,

642 &

672

with

loop

317

Acme—

Acme

Electric

Co.

Airline—

Montgomery,

Ward &

Co.

Amertran—American

Transformer

Co.

Amrad—Amrad

Corp.

Apex—

United

States

Radio &

Televis-

ion

Co.

Arcadia—

Wells

Gardner

Co.

Argus—

Argus

Radio

Corp.

Atchison—

Atchison

Radio

Mfg.

Co.

Atwater

Kent—

Atwater Kent

Mfg.

Co.

Audiola—Audiola

Radio

Co.

Aztec—

Stein,

Fred

W.

Baldwin—

Nathaniel

Baldwin

Co.

Balkite—National

Transformer

Mfg.

Co.

(Balkite

Sales

Division)

Bosch—

American

Bosch

Magneto

Corp.

Brandes—Kolster

Radio

Corp.

Bremer Tully—

Bremer

Tully

Mfg.

Co.

(Now

Brunswick

Radio

Co.)

Browning

Drake—

Browning

Drake

Corp.

Brunswick—

Brunswick

Balke

Collender

Co.

(Brunswick

Radio

Co.)

Buckingham—

Buckingham

Radio

Co.

Bush &

Lane—

Bush &

Lane

Piano

Co.

Capehart

Orchestrope—Capehart

Corp.

Webster

Elec.

Co.

Cardinal--

Long

Radio

Co.

Cardon

-

Sparks

—

Cardon

-

Sparks

Phono

-

craft

Corp.

Carteret—

Carteret

Radio

Lab.

Clarion—

Transformer

Corp.

of

Amer-

ica.

Cleartone—Cleartone

Radio

Corp.

Div.

of

Cincinnati

Time

Recorder.

Colonial—

Colonial

Radio

Corp.

Columbia—

Columbia

Phonograph

Co.

(Columbia

Radio

Co.)

Counterphase—Bremer

Tully

Mfg.

Co.

Courier—

United

Reproducers

Corp.

(Now

Gray

Electric

Co.)

Crosley—Crosley

Radio

Co.

Day

Fan—

General

Motors

Radio

Corp.

DeForest—DeForest

Radio

Co.

Delco—

Delco

Radio

Corp.

Earl—

Freed Radio

Corp.

Edison—

Edison,

Thomas

A.,

Inc.

Electrad—Electrad,

Inc.

:ISMIMIUMITTIMITITMMIT

I

MTM

LU

irtnirjetIM

MII

IM

MI

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ll

.11111111,9

15 &

16;

15E,

15EP,

16E,

16EP;

42 &

422 318

ZE16

power

supply;

ZE12

pow-

er

supply;

Models

41 &

412

319

Models

52 &

53;

54

320

Model

70 (

71, 72,

73 &

77 -

60

cycle;

712,

722,

732 &

772

-

26

cycle)

321

Model

80

320A

Model

80

Power

Supply

320B

MISCELLANEOUS

CIRCUITS

Aerodyne

Six

344

Ambassador

Four

344

Magnavox

TRF-5

and

TRF-50

344

TRADE

NAME

INDEX

Emerson—

Emerson

Radio &

Phono-

graph

Corp.

Erla—Electrical

Research

Laboratories.

Eveready—National

Carbon

Co.

Fada

—

Andrea,

F.

A.

D.,

Inc.

Federal—

Federal

Radio

Corp.

Fin-

All—

Find-

All

Radio

Co.

Freed

Eisemann—Freed

Radio

Co.

Freshman—

Freed

Radio

Co.

General

Motors—

General

Motors

Radio

Corp.

Gilbert—

Gilbert,

R.

W.

Gilfillan—Gilfillan

Bros.

Inc.

Graybar—Graybar

Electric

Co.

GI

ebe—Grebe

Radio

Co.,

A.

H.

Gulbransen—Gulbrarisen

Co.

Hammarlund—Hammarlund

Mfg.

Co.

Howard —

Howard

Radio

Co.

Hyatt—

Hyatt

Electrical

Corp.

ICA—Insuliné

Corp.

of

America.

Jackson

Bell—

Jackson

Research

Lab.

Jesse

French—

Jesse

French &

Sons

Piano

Co.

Kellogg—

Kellogg

Swbd. &

Supply

Co.

Kemper—

Kemper

Radio

Corp.,

Ltd.

Kennedy—

Kennedy

Corp.,

Colin

B.

King—

King

Mfg.

Corp.

Kolster—Kolster

Radio

Corp.

Kylectron—United

Reproducers

Corp.

(Now

Gray

Electric

Co.)

Leutz—Leutz,

Inc.,

C.

R.

Lincoln—

Lincoln

Radio

Corp.

Loftin

White—(

See

Electrad)

Lyric—

All

American

Mohawk

Corp.

Majestic—

Grigsby

Grunow

Co.

Marti—

Marti

Radio

Corp.

Master—

Master

Radio

Mfg.

Co.

Ltd.

McMillan—

McMillan

Radio

Co.

Melo

Heald—

Robertson

Davis

Co.

Melorad

Cathedral—

Federated

Pur-

chasers.

Minera

--

Minerva

Radio

Co.

National—

National

Transformer

Mfg.

Co.

Navigator—

A.

C.

Dayton

Co.

Orpheus—

Roth-

Downs

Mfg.

Co.

Patterson—

Patterson

Radio

Corp.

Peerless—

United

Reproducers

CDrp..

(Now

Gray

Electric

Co.)

Continental

Wireless

and

Sup-

ply

Co. "

Voice

of

the

Road"

Automotive

344

Magnaformer

9-8

Superhetero-

dyne

352

Blair

TRF

6-

tube

receiver

342

St.

James

Superheterodyne _

336

Madison

Moore

Superhetero-

dyne

336

Victoreen

Superheterodyne

336

Garod

Neutrodyne

358

Grimes

4-

DL

Inverse

Duplex

358

Zaney-Gill

Receiver

358A

Mission

Bell .

and

Royale

358A

Philco—Philadelphia

Storage

Battery

Co.

Pierce

Airo—Pierce

Airo,

Inc.

Pilot—

Pilot

Radio &

Tube

Corp.

Pioneer—

Pioneer

Radio

Corp.

Priess—Priess

Radio

Co.

Premier—

Premier

Electric

Co.

Radiette—Keller

Fuller

Mfg.

Co.

Ltd.

Radiola—R.

C.

A.

Victor

Co.

Radiotrope—U.

S.

Radio &

Television

Co.

Ranger—

Brown &

Manhart

Republic—

Republic

Radio

Co.

Sentinel—

United

Air

Cleaner

Co.

Seven-

Seas—

Levitz,

Inc.,

C.

R.

Silver—

Silver

Marshall,

Inc.

Silvertone—Sears,

Roebuck &

Co.

Simplex—

Simplex

Radio

Co.

Sonora—Sonorà

Phonograph

Co.

Inc.

Sparton—

Sparks

Withington

Co.

Splitdorf—Edison,

Thomas

A.,

Inc.

Star

Raider—

Continental

Radio

Co.

Steinite—Steinite

Radio

Co.

Sterling—

Sterling

Mfg.

Co.

Stewart

Warner—

Stewart

Warner

Corp.

Story &

Clark—

Story &

Clark

Radio

Corp.

Stromberg

Carlson—Stromberg

Carl-

son

Tele.

Mfg.

Co.

Telmaco—Telephone

Maintenance

Co.

Temrle—Temple

Corp.

Tom

Thumb—

Automatic

Radio &

Mfg.

Co.

Transitone—Automooile

Radio

Corp.

Trav-Ler—Trav-Ler

Mfg.

Co.

U.

S.

Radio—

U.

S.

Radio &

Television

Corp.

Vagabond

—

Vaga

Radio

Corp.

Victor—

R.

C.

A.

Victor

Co.

Victoreen—

Victoreen

Radio

Co.

Webster—

Webster

Electric

Co.

Westinghouse—

Westinghouse

Elec. &

Mfg.

Co.

Willard—

Willard

Storage Battery

Co.

Work-

Rite—

Work-

Rite

Radio

Corp.

Wurlitzer—(See

All

American

Mo-

hawk

Corp.)

Zenith—

Zenith

Radio

Corp.

Fe '

fS'

E

kttit

..

it

OFFICIAL

RADIO

SERVICE

MANUAL

3

•

e

Potter

Condenser

Service

Replacement

By-

Pass

and

Filter

Blocks

For

All

Receivers

Unequalled

Hi-

Speed

Shipment

of

Standard

Condenser

Units

Potter

Condenser

service

provides

immediate

shipment

of

condenser

units

for

standard

sets.

Use

the

Potter

Wall

Chart

of

Replacement

Condensers

when

you

need

by-pass

or

filter

condensers.

Just

look

up

the

make

and

model,

and

order

by

number

the unit

you

want.

Replace

defective

units

with

Potter

Condensers,

made

to

the

set

manufacturer's

specifications.

There's

more

profit

and

you

can

depend

on

the

quality

Potter

Rug

Aerial

The

convenient

and

sensitive

aerial

for

all

sets.

Makes

the

out-

side

antenna

unnecessary.

No

in-

stallation;

just

connect

to

receiver.

The

Potter

Co.

Sales

Offices

443

So.

San

Pedro

St.,

Los

Angeles,

Calif.

905 Mission

St.,

San

Francisco,

Calif.

1641

Stout

St.,

Denver,

Colo.

549

W.

Washington

Blvd.,

Chicago,

Ill.

1202

Maryland

Ave.,

Baltimore,

Md.

261

Franklin

St.,

Boston.

Mass.

Special

Units

Duplicated

48

Hours

After

Receipt

of

Order

Any

condenser

unit

can

be

duplicated

in

less

than

48

hours.

Send

the old

block

in

and

get

back

from

Potter

an

exact

duplicate.

Our

container

plant

makes

special

cases

for

any

job.

If

it's

a

condenser

you

need,

Potter

has

it

or

will

maim

it

to

your

exact

specifications

on

short

notice.

Order

from

your

jobber,

any

Potter

sales

office,

or

from

the

factory

in

North

Chicago,

Ill.

Send

For

This

Free

Chart

1.1.••••

Mkro.

Potter

Condenser

Replacement

Chart

Time

Peter

Ce.

IISeek

Cheeses,

A

NATIONAL ,

,

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A I

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POTTER

Nos.

113-300

elominator

etops

interfer-

ence

from

entering

set

through

the

power

supply.

Cartridge

Units

No.

1

Wax

Potter

cartridge

condenser

units

and

No.

1

wax

should

be

carried

by

every

serviceman_

Invaluable

for

quick

repairs.

North

Chicago,

Ili.

Sales

Offices

202

Baker

Bldg.,

Minneapolis,

Minn.

191

Starin

Ave.,

Buffalo,

N.

Y.

710

Union

Central

Bldg.,

Cincinnati,

Ohio.

1400

W.

25th

St.,

Cleveland,

Ohio.

305

Seventh

Ave_

Pittsburgh,

Pa.

1913

Pacific

Ave.,

Dallas,

Texas.

276

Smith

St.,

Winnipeg,

Manitoba,

Can.

4

OFFICIAL

RADIO

SRRVICE

MANUAL

nuniminruniriimmirm"7:

liziL.a.:

;

_ntnimmumilimummlumiirriumurirmiireimenrinerruirmiimetirmummumrninriaPutiunitiirrnruir

,,

Termi:"%quimniinniumm:;:uvà

1

E

)

11

INDEX

TO

COMMERCIAL

WIRING

DIAGRAMS

W

ITH

the

issuance

of

each

set

of

supplements,

a

completely

revised

and

up-to-date

index

is

furnished.

To

use

this

first

remove

all

of

the

pages

from

the

cover;

throw

away

the

old

index

pages

and

replace

them

with

the

new

ones;

and

then

insert

the

supplement

pages

in

their

numerical

and

alphabetical

order.

Then

replace

the

cover

and

the

book

is

complete.

Often,

the

trade

name

of

a

set

is

known

by

the

user

of

this

book

but the

name

of

the

manufacturer

not

known.

In

searching

for

diagrams,

if

the

particular

diagram

you

desire

cannot

be

found,

be

sure

to

look

through

the

Mis-

cellaneous

section

at

the

end

of

this

index.

If

it

is

not

listed

there

look

through

the

Trade

Name

Index;

this

gives

the

name

of

the

manufacturer

for

each

trade

name.

Since

all

diagram

s

are

listed in

the

index

in

alphabetical

order

in

accordance

with

the

manufacturers'

names,

it

is

absolutely

necessary

to

know

the

name

of

the

manufacturer

before

a

particular

diagram

can

be

found.

In the

supplements

are

included

diagrams

for

which

we

have

received

requests.

Wherever

the

diagrams

that

have

been

requested

are

not

included

in

one

set

of

supplements,

they

will

appear

in

the

first

set

published

after

we

receive

them.

Many

diagrams

of

obsolete

sets

are

difficult

to

obtain,

but

we

are

using

every

possible

effort

to

procure

them.

We

wish

to

express

our

thanks

to

the

many

subscribers

who

have

taken

such

extreme

interest

in

the

MANUAL,

and

especially

to

those

who

have

voluntarily

submitted

diagrams

for

publication

in

the

supplements.-

THE

PUBLISHERS.

A

WATTAGE

OF

RECEIVERS

76N

PHONO

-

RADIO

INSTALLATION

76M

R.

M.

A.

COLOR

CODE

76M

A.

C.

DAYTON

CO.

XL-

20;

XL-

25;

XL-

30 . _ . .....

77

XL-

61;

AC-

66 .

78

AC-

63;

AC-

65 ...

79

XL-

5;

Navigator,

Navigator

Power

P.

80

XL-

10;

XL-

70

80A

XL-

60;

XL-

50A.

C. . _

80B

ACME

ELECTRIC

CO.

Model

S.G.

88;

A.C.-7 _ _

81

ALL

AMERICAN

MOHAWK

CORP.

1 6

and

8

tube

A.C. "

W"

Power

9

Pack ----------------------------

82

Lyric

models

60,

61, 62,

65

and

I

Lyric

models

80,

83, 84, 85, 86,

66

88 82

70,

73

and

75;

No.

90

cha

ss

is,

82

M

60

cycle

83

No.

90

chassis,

25

cycle;

No.

96

E

=

chassis,

60

cycle

84

E.

Mohawk

one

dial

battery

and

a

A.C.

226-227

85

E

Model

D.

Lyric

Receivers

84A

Ei

Model

44;

Model

H

84B

All

American

Lyric

B-94

358C

ALLIED

RADIO

CO.

(Same

as

Columbia

Radio

Co.)

AMERICAN

BOSCH

MAGNETO

CORP.

16

Amborola;

27

Amborada;

46

The

Little

Six;

57

and

87 _

86

Cruiser,

Royal

Cruiser

and

Im-

perial

Ciuiser

model

35

bat-

tery

sets _

87

Models

66,

76,

and

76L

the

Cruiser;

Models

66AC,

96,

116,

136

for

A.C.;

Model

107

for

A.C.;

Modeis

126, 146,

166,

176,

46A.C.

88

Model

96

D.

C.

110 V.

Cruiser;

Model

156

Cruiser;

Model

28;

Model

825

Super

Dynamic

Power

Pack

89

Models

48

and

49;

Type

BAN

edition

2

Nobattery;

Type

BAN

edition

3

and

4

Nobat-

D.

tery;

Types

BAN

edition

•and 5

6

Nobattery

90

E

Model

54 D.C.

receiver;

Bosch

Motor

Car

receiver

91

Model

58,

59

90A

•

Model

61,

62

90B

AMERICAN

TRANSFORMER

CO.

PF

250

Power

Amplifier __ _

334

ABC

Hi

Power

Box

26

•

2-

AP

amplifier

and 21-D Hi

Power

box .

342

•

Amertran

Concert-

Hall

Ampli-

fier

type

25A;

Approved

5

E

Audio

Circuits

334A

Plate

Supply

Transformer

Connections

334B

AMPER1TE

Line

Waage

Con-

trols

for

Standard

Receivers .

761

AMRAD

CORPORATION

Neutrodyne

A.C.-5;

Model

D.C.-

6;

Model

A.C.-6

Concerto

Nocturne

92

Model

D.C.-7;

Model

A.C.-7

93

Model

80,

82,

and

83;

No.

7100;

No.

S-522

3500-2;

2500-1;

S-733;

7191

power

unit;

No.

3590 ------

95

Amrad

model

81 (

Bel

Canto

Series)

96

APEX

RADIO

CO.

See

U.

S.

Radio

and

Television

Co.

ARGUS

RADIO

CORP.

B-195;

B-125 --------------------

26

ATWATER

KENT

MANUFACTUR-

ING

CO.

Model

10;

Model

10B;

Model

20

compact;

Model

12;

Model

19;

Model

20 -------

-

----

---------

97

Model

21

dry

cell;

Model

32;

Model

36

with condenser

vol-

ume

control;

Model

36

with

resistance

volume

control

98

Models

30,

33,

35,

48

and

49 _ __

99

Model

37;

Model

38;

and

power

unit

100

Models

40,

42

and

52;

Model

44;

and

power

unit

101

Model

41;

Model

43

102

Model

50;

2nd.

type

power

unit

for

Model

41;

3rd.

type

power

unit

for

Model

41;

2nd.

type

power

unit

for

Model

44

103

Model

55

and

55C

104

3rd.

type

Model

60-C

328

AUDIOLA

RADIO

CO.

Series

31

104A

Superheterodyne

receiver _

104B

AUTOMATIC

RADIO

AND

MFG.

CO.

"Tom

Thumb"

Portable

340

AUTOMOBILE

RADIO

CORP.

TR-106;

NR-

109

75

BALKITE

PRODUCTS

COMPANY.

Model

C;

Model

F --------

-

----------

105

Models

A-3;

A-5

and

A-7

352

(A &

B

Eliminators)

Balkite

EX;

Combination

KX;

AB6-135

Form

A;

AB6-135

Form

B _

104A

B-180

Form

B; B-135;

BY;

BW

or

B

Model

D;

B-11

104B

Socket "

A"

supply

23

6-180

Form

A

26

BREMER-TULLY

MFG.

CO.

B-

T

Counterphase

6;

Counter-

phase

8;

6-40

power

converter

106

6-40

circuit

diagram;

8-20A

107

7-70

and

7-71

108

(Also

see

Brunswick)

BROWNING-

DRAKE

CORP.

Model

34,

36

and

38

350

MB-

30 ..

108A

Model

69;

Models

70 &

71 _

108B

BRUNSWICK

BALKE

COLLENDER

CO.

Models

14,

21

and

31

S.P.U.

109

Model

31

combination

radio

and

Panatrope

110

RPA-1;

RPA-4 ___

265

Models

3

and

10

267

BRUNSWICK

RADIO

CORP.

Bremer-

Tully

Models

81 &

82

110A

Bremer-

Tully

Models

S81 &

S82-25

cy;

Brunswick

S14

&

S21;

Brunswick

Panatrope

S31

110B

Bremer-

Tully

S81 &

S82-60

cy;

Brunswick

S-14 &

S21-

60

cy.

110C

Model

5NO (

SPU

X-900,

Chas-

sis

X-1101

110D

Panatrope

3NC8 (

Chassis

X-

1103,

SPU

X-901)

110E

Model

3KR8 (

SPU

X-355,

Chas-

sis

X-822)

110F

SPU

X-341 (

used

with

5KR,

5KRO &

3KRO),

SPU

X-341

&

dynamic

spkr. (

used with

3KR6 &

5KR6

110G

Chassis

X-801 (

used

with

5KR,

5KRO

2KRO &

5KR6);

&

dynamic

spkr. (

used

with

panatrope

combinations

and

3KRO &

3KR6)

110H

Chassis

X-1104 (

used with

panatrope

combinations

and

3NW8);

SPU

X-902 (

used

with

3NW8)

1101

Models

15 &

22;

Model

R-1

110J

Model

B-15

"

Uni

-

Selector" _ _

110K

Model

D.C.-15 .

110L

BUCKINGHAM

RADIO

CORP.

Model

80 ... .

348

BUSH

AND

LANE

PIANO

CO.

No.

10

DeLuxe;

No.

12

S.G

111

CANADIAN

MARCONI

CO.

Type

XIV

D.C.

360

Tuner

Unit

Types

XV,

XVI,

XVII,

XVIII

A.C.;

Power

Unit

XVI

------------------

361

Model

20

A.C.

Chassis

362

En'

s-

g.

1

OFFICIAL

RADIO

SERVICE

MANUAL

5

RADIO

MEN,

ELECTRICIANS,

TELE-

PHONE

MEN

OR

MEN

WITH

SIMILAR

KNOWLEDGE,

WRITE

US

ABOUT

OUR

TRAINING

PLAN -

WE

NOT

ONLY

ARRANGE

TRAINING

BUT

SPARETIME

WORK

AS

WELL.

PHOTO -

ELECTRIC

RESEARCH

LAB-

ORATORY

CORP.-A

MILLION

DOLLAR

CORPORATION -

HAVE

CONTRACTED

TO

EXCLUSIVELY

EMPLOY

OUR

MEM-

BERS

TO

OPERATE

THEIR

NEW

PHOTO-

ELECTRIC

ENGRAVER.

SERVICE

MEN

WANTED

EVERYWHERE

TO

INSTALL

and

service

all

makes

of

sound

repro-

'

clueing

systems,

public

address

sy'stems,

etc.

NATIONAL

SOUND

SERVICE

BUREAU

is

an

organization

of

manufacturers

of

sound

equipment,

users

of

sound

equipment

and

hundreds

of

electro

-

acoustical

engineers

located

everywhere

to

install

and

service

this

equipment.

If

you

are

competent

now,

our

organization

needs

you;

if

not,

we

can

arrange

to

have

you

trained.

Write

us

your

present

qualifications.

NATIONAL

SOUND

SERVICE

BUREAU,

Inc.

723

Seventh

Avenue

Dept.

SM

New

York,

N.

Y.

MANUFACTURERS

OF

SOUND

EQUIPMENT,

you

can

join

ear

organ-

ization

and

reap

the

advantages

et

the

largest

and

most

comprehensive

woad

service

men'.

organization

in

the

world.

USERS

OF

SOUND

EQUIPMENT.

write

na.

We

have

an

electro-acenstical

engineer

near

you

available

now

te

hell

, /

OIL

OVER

1000

MEMBERS—

LOCATED

IN

EVERY

STATE

IN

THE

UNION,

EVERY

PROVINCE

OF

CANADA AND

MANY

FOREIGN

COUNTRIES

THE

LARGIffl

AND

MOST

COMPREHENSIVE

ORGANIZED

BODY

OF

SOUND

ENGINEERS

IN

THE

WORLD

National

Sound

Service

Bureau,

Inc.

Organized

under

the

laws

of

the

State

of

New

York

as

a

non-profit

mem-

bership

Co-operative

Bureau.

6

OFFICIAL

RADIO

SERVICE

MANUAL

f"In111=1121191111111F.P1=1111=1=111rimmmlufflrmlurClri:1:.

!mIflflmrnflu1TrnIm1mIIII!llImmrnu,ImIIHn1fffuI!,unmuflmrnuui!

lMode

20

A.C.

Prowe

Unit

36; :

Model

21

A.C.

sChasis

64 3

Model

21

.C.A

Poer w

Unt i

35 6

el Mod

22

.C.A

Cshassi

366

l Mode

22

A.C.

Power

Unit

367

Mdel o

23

C.A.

C hassis

368

Model

23

.A.C

Power

Ut ni

369

Model

19

C.D.

370

eModl

829 2-

373

Model

70

374

Model

80,

60

and

25

cycle

Model

89

Model

90

Model

99

Model

110

Model

120

375

376

377

378

379

380

CANADIAN

WESTINGHOUSE

CO.

LTD.

Model

56,

W55A,

W57, W60,

W68

371

6-

Tube

A.C.

Chassis

1928

model

and

200B

loud

speaker;

No

18

SPU

372

CAPEHART

CORP.

See

Webster

Elec.

Co.

Page

350

CLEARTONE

RADIO

CORP.

Golderest

Model

60;

Model

80

112

Clearodyne

Model,

70;

Clear

tone

Series

100

113

Model

110

compact;

Model

112 114

COLONIAL

RADIO

CORP.

Model

31

A.C.

115

31

and

32

D.C.

116

32 A.C. 117

33 &

34 A.C.

Remote

Control .

330

Model

33

D.C.;

Model

16

116B

OLUMBIA

PHONOGRAPH

CO.

(see

Kolster)

6

tube

A.C.

set;

7

tube

A.C.

set

118

Columbia

C-5

and

Kolster

K-24;

C-5

Substitute .

119

Models

930-300;

Model

931

120

Model

902;

Type

950

radio

and

phonograph

combination

121

Models

900 -

801;

Model

961 .

122

Power

Pack

for

model

980;

6

tube

D.C.

set

C6-

C7

123

Type

980

radio

and

phonograph

combination

124

COLUMBIA

RADIO

CO.

Screen

Grid -

8 .

Screen

Chid

8

receiver .......

D

DAY-

FAN

ELECTRIC

CO.

See General

Motors

Radio

Corp.

DeFOREST-CROSLEY

LTD.

DC-

5

compact;

C-6

compact;

Conway

and

Hastings;

War-

wick

and

Windsor ..............

381

Balmoral

and

Berwick;

Band-

box

Jr.;

A.B.C.

Power

unit

282

Barcarolle

and

Minute;

Etude

and

Symphony;

Electric

Hastings

383

First

Series

Symphony;

Elect-

Berwick;

Second

series

Sym-

phony;

Nocturne,

A.C.;

Con-

certo,

Sonata

and

Opera

384

Types

400-420;

410 385

ARIA

and

Troubador

models

Aria

and

Troubador

models

type

740;

type

750 386

DeFOREST

RADIO

CO.

CS-

5;

F-5;

D-17

353

DELCO

RADIO

CORP.

"Police"

Short

Wave

Set _

76A

Delco

Automotive

Radio . .

184

E

EARL

RADIO

CORI'.

See

Chas.

Freshman,

Inc.

ELECTRICAL

RESEARCH

LABORA-

TORIES

Erla

model

224

screen

grid ......

142A

Erla

model

225

142B

THOMAS

A.

EDISON,

INC.

(Also

see

Splitdorf)

R-4,

R-6

and

C-4

141

R-1,

R-2

and

C-2

Chassis

Jr

and

Je;

Model

C-1

chassis

SC

142

RT

1,

R-2

and

C-2

chassis

Jr

and

Cr

(

25

cycle)

143

Models

R-6 &

R-7 ....

140B

Models

R4, R5,

D.C.

140D

ELECTRAD,

INC.

Loftin-

White

amplifier

63

Type

250;

and

250

Push-

Pull

358B

EMERSON

RADIO &

PHONOGRAPH

125

CORP.

118B

Model

F

356

CONTINENTAL

RADIO

CORP.

Models

Ten

29-A

and

B

with

171-L

Power

Unit;

Model

9

126

Slagle

29-C;

Slagle

29-A &

B

127

Ten

29-D

and

C

with

250-L

power

unit..........

.

....

...

.....128

All

Models

129

CROSLEY

RADIO

CORP.

AC-

7

and

AC-

7C

130

Model

3B

and

3C;

Trirdyn

3R3;

5-38;

Type

V;

Model

51;

2-

stage

A.F.

amplifier

fur

type

V;

Mddel

X1

and

XL

131

Model

4-29;

Models

30S, 31S,

33S,

34S;

Models

40S,

41S,

42S,

82S

132

Models

40S,

41S,

12S,

82S,

ar-

ranged

for

M

type

speaker;

Model

401;

Modcl

608

133

Models

60S,

61S, 62S,

63S;

Jewelbox

704-A

134

Model

601

135

Jewelbox

704-B;

Showbox

706

136

Jewelbox

704;

Gembox,

Gem-

chest

610-609

A.C.;

804

A.C.

137

..

Jewelbox

706;

Models

20, 21,

22;

Model

RFL-90

138

Models

41-A &

42-

AC;

6-20

and

6-85 .

139

Bandbox

Jr.

401-A;

602

Band-

box;

Buddy

and

Chum

Model

54 -

New

Buddy

Midget

Wigit

model

48

MIIIIULIIII1111111'.111111511Mtill

140

354

358A

F.A.D.

ANDREA,

INC.

FADA

RESISTORS

AND

CONDEN-

SERS

76N

Fada

10, 11,

30

and

31 -

60

cy.;

11)2,

11Z,

30Z,

31Z -

25

cy.;

16,

17

and

32 -

60

cycle;

16Z

and

32Z -

25

cycle

144

Fada

18

D.C.;

Fada

22

battery

145

Fada

20

A.C. -

60

cycle;

20Z

A.C. -

26

cycle;

25

A.C. -

60

cycle;

25Z

A.C. -

25

cycle

146

25

and

25Z

with

M-250

and

M-

250Z

Electric

Units;

35

A.C. -

60

cy;

3bZ

A.C. -

25

cycle

147

Fada

40

A.C.

60

cycle

using

P-250

Elec.

Unit

and 7-A

speaker;

Fada

50,

70,

71

and

72 148

E-420

Electric

Unit;

E-180

Electric

Unit;

192-A

receiver,

192-S

and

192-

BS

Units .

149

"7"

A.C.;

75

and

77

A.C. 60

cycle

150

Special

model

265

A

and

Fada

"7"

model

475-A

151

460-A

receiver

and

R-60

unit;

R-

80-A

unit,

480-A

or

SF

50/80A

152

"Special"

A.C.

receiver

265

UA

or

CA

and

RP-

65

-

UA

or

CA;

262

-

UA

or

CA

and

RP-

62

-

UA

or

CA;

480-B

and

SF

50

/

80

B

153

"ABC"

6

volt

supply

types

66-0

and

62-R; "

ABC"

6

volt

supply

types

86-V

and

82-W;

Type

J

unit;

Type "

C"

unit

used

with "

special"

and

7

AC

154

Fada

KA

-6

Chassis

for

models

42,

44, 46,

41,

47

154B

Fada

5-

tube

Neutrodyne;

160

neutrodyne

154A

FEDERAL

RADIO

CORP.

Ortho-Sonic

type

1);

Series

Filament

type

D;

155

Model

K

166

Series

Filament

type

F;

Ortho-

Sonic

type

H

157

Series

Filament

type

E;

Type

M

158

FEDERATED

PURCHASER

Melorad

Cathedral

Tone

365

FREED-EISEMANN

RADIO

CORP.

Model

NR-

6;

Model

NR-

7;

Model

NR-

9 -

9A

159

Model

10;

Model

NR-

11;

Model .

NR

12 160

Model

FE-

15;

FE-

18;

NR-

20;

NR-

60

161

Models

30,

40

and

48;

Models

30N,

40N

and

48N;

Model

50

162

Model

130:

Model

NR-

215,

NR-

400;

English

long

and

short

wave

set

163

Model

457

Power

Unit;

Model

NR8ODC

164

Model

90S

AC;

Model

NR-

95

AC;

470

165

Model

NR-

85;

Model

63;

Model

800

166

CHAS.

FREEMAN

CO.

INC.

Earl

models

21

and

22;

Earl

models

31

and

82

167

QD-16S;

Model

N

168

Model

G;

Model

G

power

pack;

Model

G

with

G60-

S

power

supply

169

Earl

model

41;

Freshman

model

M

with

M-

60-S

power

supply

170

New

and improved

Masterpiece;

Equaphase;

Model

H-9

171

Combination

K

and

K-

60-S;

QD-16S

172

Q-15

and

Q-16;

2N «.

nd

2N-

60-S

173

21AC

and

22AC;

3Q-15 and

3Q-16

174

Model

121;

Model

21

D.C.;

Earl

models

33,

31

and

24

DC

175

32

and

32

AC;

31-

SAC

and

32-

SAC

and

Earl

33-

SAC;

41AC

176

G

GENERAL

ELECTRIC

CO.

H-31

266A

H-71

2661i

H-51

266D

GENERAL

MOTORS

RADIO

CORP.

Day-

Fan

OEM-

11;

OEM-

7;

OEM-

7

super

selective;

5-

tube 1925

model

177

Day-

Fan

Five "

5044"

178

Model

5056

358A

Day-

Fan

Five

Twenty

Seven

5-

tube;

Six -

6

tube;

Seven

7-

tube

179

Day-

Fan

6-61 -

6-

tube;

6B -

6-

tube;

6

Junior

ti-

tube;

6AC

6-

tube

180

SAC -

5-

tube;

Model

35

7-

tube;

6AC

Power

Set;

C

Junior

AC

Power

Set;

110

Volt

D.C.

6-

tube;

Motor

Generator

Set

181

PTIIIIIMEIMM.

ItiwILIIIIIIIMIIIIMITIIIIIIIIEMME;11111i1=11111ffil=naliruita:ualliukink:IIIIIIIIIIIIIIMIMIUMIMMEIMMI=11111111MMIALM11111

OFFICIAL

RADIO

SERVICE

MANUAL

6A

Announcement!

eb

O

FFICIAL

R

ADIO

S

ERVICE

M

EN'S

A

SSOCIATION

E.

VER

since

the

appearance

of

the

com-

mercial

radio

broi.dcast

receiver as

a

household

necessity,

the

Radio

Service

Man

has

been

an

essential

factor

in

the

radio

trade;

and,

as

the

complexity

of

electrical

and

mechanical

design

in

receivers

increases,

an

ever-

higher

standard

of

qualifications

in

the

Service

Man

becomes

nece5sary.

The

necessity,

also, ot

a

strong

association

of

the

technically-

qualified

raiio

Service

Men

of

the

country

is

forcing

itself

up(

n

all

who

are

familiar

with

radio

trade

problem;

and

their

repeated

urgings

that

such

an

assoc.ation

must

be

formed

has

led

us

to

undertal(

e

the

work

of

its

organization.

This

is

the

fundamental

purpose

of

the

OFFICIAL

RADIO

SERVICE

MEN'S

ASSOCIA-

TION

which

is

not

a

money-

making

institution.

or

organized

for

private

profit;

to

unite,

as

a

group

with

strong

commos

interests,

all

well-

qualified

Radio

Service

Men;

to

make

it

readily

possible

for

them

to

obtain

the

technical

informa-

tion

required

by them

in

keeping

up

with

the

demands

of

their

profession;

and,

above

all,

to

give

them

a

recognized

5

tending

in

that

pro-

fession,

and

acknowledged

vs

such

by

radio

manu-

facturers,

distributors

and

dealers.

To

give

Service

Men

st.ch

a

standing,

it

is

obviously necessary

that

ney

must

prove

them-

selves

entitled

to

it;

any

Service

Man

who

can

pass '

le

examination

nec ssary

to

demonstrate

his

qualifications

will

be

elected

as

a

member

and

a

card

will

be

issued

to

him

under

the

seal

of this

Association,

which

will

attest

his

ability

and

prove

his

identity.

The

terms

of

the

examini.tion

have been

drawn

up

in

co-operation

with

a

pimp

of

the

best-known

radio

manufacturers,

as

well as

the

foremost

radio

educational

institutiols.

The

following

firms

are

co-operating

with

us:

GRIGSBY-GRUNOW

CO (

Majestic),

CHICAGO

STROMBERG-CARLSON

TELEPHONE

MFG.

CO.,

ROCHESTER,

N.

Y.

CROSLEY

RADIO

CORP.,

CINCINNATI,

OHIO

COLIN

B.

KENNEDY

CORP.,

SOUTH

BEND,

IND.

The

schools

who

have

consented

to

act

as

an

examination

board

are:

International

Correspondence

Schools,

Scranton,

Penna.;

Mr.

D.

E.

Carpenter,

Dean.

RCA

Institutes,

Inc.,

New

York,

N.

Y.;

Mr.

R.

L.

Duncan,

President.

East

Bay

Radio

Institute,

Oakland,

Calif.:

Mr.

T. T.

Tonnehilt,

Director.

Radio

Training

Association

of

America,

Chicago,

Ill.;

Mr.

A.

G.

Mohaupt,

President.

School

of

Engineering

of

Milwaukee,

Wisc.;

Mr.

W.

Werwath,

President.

Rider-Goll

Radio

School,

New

York,

N.

Y.;

Mr.

John

F.

Rider,

Director.

Radio

College

of

Canada,

Toronto,

Canada;

Mr.

J.

C.

Wilson,

President.

Radio

Division,

Coyne

Electrical

School,

Chicago,

Ill.;

Mr.

H.

C.

Lewis, President

We

shall

not

attempt

to

grade

the

members

into

different

classes.

A

candidate

will

be

adjudged

as

either

passing

or

not

passing.

If

the

school

examining

the

papers

passes

the

prospective

mem-

ber

as

satisfactory,

we

shall

issue

to

him

an

identification

card

with

his

photograph.

If

the

candidate

does

not

pass

this

examination

the

first

time,

he

may

apply

for

another

examina-

tion

three

or

six

months

later.

There

is

absolutely

no

cost

attached

to

any

service

rendered

by

the

Association

to

its

mem-

nets,

no

dues,

no

contributions.

If

you

wish

to

become

a

member,

just

fill

out

the

coupon

below

and

mail

it

to

us.

We

will

send

you

all

the

papers

necessary

to

become

a

member.

O.

R.

S.

M.

A.,

c/o

RADIO

CRAFT,

98

Park

Place,

New

York,

N.

Y.

I

wish

to

become

a

member

of

your

Association.

Please

mail

me

the

examination

papers

and

appli-

cation

blanks.

Name

Address

T

own...

State.

SU.

3

OFFICIAL

RADIO

SERVICE

MANUAL

11111rm'Iffir.'1'Ir

******

Irernarnwne.

-

”T”,

32

volt

D.C.

set

6-

tube;

Motor

Generator

and

Filter;

Power

Supply

for

5-

tube

AC

set;

Power

Supply

for

6-

tube

AC

set;

B

and

C

Power

Supply;

B

Power

Supply

for

No.

5524

and

No. 5525

8-

tube

Model

5077;

8-

tube

Model

5080;

8-

AC

Power

Set

General

Motors

Model "

A"

chassis;

Delco

Automotive

Radio

GILFILLAN

BROS.

INC.

Ere:

•

A.C.

Model

60;

A.C.

Model

100

•

GRAYBAR

ELECTRIC

CO.

Model

311

•

700

900

El

770

E

a

M

A. H.

GREBE &

CO.

R.F.

Amplifier

type

RORN;

"13"

Regenerative

Receiver;

Short

Wave

type

CR

-

18;

Short

Wave

type

CR

-6

Synchrophase

type

MU-

1;

Broadcast

Receiver

Super

Synchrophase

type

SK-

4;

Synchrophase

7-

AC

Synchrophase

7

Super

Synchrophase

A.C.-SK-4

B &

C

Socket

power

type

671-B

Synchrophase

type

AH

-1

E

182

183

184

185

338

266A

266B

266D

186

187

188

189

188A

1881

GRIGSBY-GRUNOW

CO.

Majestic

Models

60-70-80;

7BP3

Power

Unit;

7BP6

Power

Unit

190

Models

90,

91

and

92;

9P3

Pow-

er

Unit;

9P6

Power

Unit;

Model

70B

chassis

in

72

Set

191

Model

100;

90-B

192

Model

100-B;

180

and

181 ***

193

7P6

and

7P3

Power

Unit (

old

wiring)

7P6

and

7P3

Power

Unit

8P6

and

8P3

Power

Unit;

P.U.

System

in

130-A

Super

Screen

Grid

chassis

Super

Screen Grid

chassis

in

model

130-A;

in

Model

230-A

Majestic "

B"

eliminators

Majestic

Models

50,

51

and

52

Supers

•

GULBRANSEN

COMPANY

▪

Model

C

9- in-

Line

E

Iu1rn!IIU1nnUn1rnnmuhIIu1uuh!Um

H

194

195

196

25

192B

JACKSON

BELL

Model

62

Midget

354

JESSE

FRENCH &

SONS

PIANO

CO.

Junior

Model "

G"

355

KELLER FULLER

MFG.

CO.

LTD.

Radiette

Model

14F

355

KELLOGG

SWITCHBOARD

AND

SUPPLY

CO.

6

Tube

Set

507

and

508;

A.C.

7-

tube

set

inductance

tuned;

"A"

chassis

510, 511,

514,

516 -

8-

tubes

198

Power

Unit

K-50

for

sets

No.

524,

525,

527,

528;

Chassis

"B"

515,

519,

521 199

523

and

526

with

power

unit

No. 245 200

Wave

Master;

AFL

7-

tube

Cas-

cade

201

Models

533, 534,

535,

536

200A

COLIN

B.

KENNEDY

CORP.

Model

281;

110;

220

202

Model

6

type

420;

Model

15

type

430

and

431

203

7

Cornet

D.C.;

Type

435;

Model

20

type

440;

Model

521

and

525 204

Model

10;

Model

20

205

Kennedy

Model

826B

Combina-

tion

204A

Royal

80;

Models

30

and

32 _

204B

KING

MANUFACTURING

CORP.

Model

10K1

Neutrodyne;

25

Neutrodyne;

71

Neutrodyne;

30

T.R.F.;

61

T.R.F.;

62

T.R.F.206

Model

E

and 80A;

Model

80;

Model

81

207

Model

F;

Model

82

and

power

pack

208

Model

J;

Model

H

209

Model

97;

Model

98;

King

Mon-

arch

210

197

Model

G;

Power

pack

wiring

King

Royal,

Imperial,

and

Monarch

HAMMARLUND

MFG.

CO.

HI-

Q

30

A.C.

51

HI-

Q

31

A.C.

356

HORN

RADIO

MFG.

CO.

Model

15

458D

HOWARD

RADIO

CO.

Model

SG-

A

Model

g

Green

Diamond (

3

diags.)

196B

INSULINE

CORP.

OF

AMERICA

211

KNAPP "

A"

POWER

UNIT

359

HOLSTER

RADIO

CORP.

Columbia

type

930;

Kolster

8K

212

Kolster

6-

tube

receiver;

7-

tube

A.C.

set

(

Brandes)

213

Kolster

8A-

B-

C;

6H;

7A

and

7B

214

K-44;

K-43

215

K-45

216

Brandes

B10;

B15;

B16

217

Tuning

chassis

for

7-

tube

sets

used

in

K-21, K-23,

K-24

and

K-28;

4-

tube

chassis

used

in

196A

K-20,

K-22,

K-25 and

K-27;

Power

supply

and

amplifier

unit

in

K-24

218

K-20,

K-22,

K-27 &

K-37

218A

K-42;

K-30 &

K-32

218B

C.

R.

LEUTZ,

INC.

Trans-

Oceanic; "

Seven

Seas"

g

A.C.

Short

Wave

Set

340

console

338

531113111=11111:17:1311311131111:1111111141111111111311=1131311111311111111111311

LINCOLN

RADIO

CORP.

Model

31

Lincoln

DC-

8

MAJESTIC

(

See

Grigsby -

Grunow

Co. )

'ern,

E

357

358C

MASTER

RADIO

MFG.

CO.

LTD.

Master

Model

424

355

McMILLAN

RADIO

CO.

Series

900;

8-

AC

Power

Set

219

MILLS

PHONOGRAPH

CO.

Mills

phonograph

218C

Phonograph

diagrams

with

ex-

tra

speakers

218D

MONTGOMERY

WARD &

CO.

5

tube

S.G.

battery

sets

Nos.

1522 &

1562. (

Wells

Gard-

ner);

7-

tube

A.C.

S.G.

sets

Nos.

2822, 2827,

2895,

2897.

(U.S.

Rad.

&

Television

Co.)

218M

8

tube

A.C.

S.G.

sets

Nos.

2955

&

2957. (

Wells

Gardner);

8

tube

A.C.

S.G.

sets

Nos.

3035, 3037, 3065,

3067. (

U.S.

Rad.

&

Television)

218N

N

NATHANIEL

BALDWIN

C'O.

Screen

Grid

Model

80

324

NATIONAL

CARBON

CO.

INC.

Eveready

models,

1,

2

and

3;

series

50

220

Eveready

series

30,

30-C

and

40

221

NATIONAL

TRANSFORMER

CO.

Midget

Six

358E

Screen

Grid

8 ..

358F

PEERLESS

(See

United

Reproducers

Corp.)

PHILA.

STORAGE BATTERY

CO.

Philco

Model

40;

Model

41

222

Model

65;

Model

76

223

Models

77 &

77A;

86 &

82

224

Model

87

225

96 &

96-A;

296 &

296-A

226

Models

511, 521, 512, 513, 514,

515, 531, 551,

571;

Model

95

227

"A" & "

B"

Eliminators "

DB"

& "

B"

part

of "

DAB"

socket

powers;

180

volt

B

and

B

part

of

180V.

AB;

Types

B-

603 &

B-263;

AB-

663,

AB-,

623,

AB-

463,

AB-

423

226A

Philco

Set

Model 65; "

Baby

Grand"

20 &

20A

226B

Socket "

A"

supply

23

AB-

656 &

AB-

652

25

Models

92,

95,

95E,

96A,

96E,

296,

296A,

296E

226C

Models

111

and

111-A

226D

Models

220

and

220-A

226E

Models

211

and

211-A

226F

Philco

Model

30

358C

PIERCE

AIRO,

INC.

AC-

24-45

352

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OFFICIAL

RALIO

SERVICE

MANUAL

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E

De

WALD

Model

A.C.

524 .

355

Pierce

Airo

DeWald

D.C.-632

358C

1

Eh

•

:F

7

1 .

PILOT

RADIO

AND

TUBE

CORI'.

PE6;

K-113

power

amplifier;

Pilotone

Electric

6-

tube;

Super

Wasp

228

Pilot

Automotive

Radio;

Grimes

110-

volt

D.C.

New

Yorker;

Twin

S.G.8

229

K-106; K-108;

S.G.-105

230

A.C.

Super

Wasp

73

Pilot

Midget

354

Pilot

Universal

Super

Wasp

358D

PRIESS

RADIO

CO.

Models

R

and

C

nine-

in-

line

supers . _

357

R C

A—

VICTOR

CO. (

Victor

Div.)

Alhambra

I (

7-1);

Electrola

Cromwell, Borgia

11

9

31

Electrola

9-25;

Electrola

9-40 23

9

Electrola

Hyperion;

Alhambra

II

and

Fiorenza;

Radiola

25

Catacomb

for

Alhambra

II

(7-2)

and

Fiorenza (

9-1)

233

Models

7-3,

7-30

and

R-20;

Electrola

Radiola

7-26;

Vic-

tor

Radiola

16

234

10-70;

AP-

777C;

Catacomb,

Radiola

28;

12-15;

12-25

235

AP-

952

and

AP-

997;

Victor

Radiola

18;

AP-

974-A;

951-A

and

997-A;

12-15

236

Victor

Radiola

17 (

in

model

7-25);

9-15

237

AP-

736;

AP-

997C;

Model

9-55

238

Electrola

Radiola

9-54;

Auto-

matic

Electrola

10-69;

and

power

wiring __

239

R-32, R-42,

RE-

45,

RE-

75,

10-69;

10-51

240

AP-

947 (

RPA-1A);

AP-

952

and

AP-

997 (

RPA-5

and

RPA-5

special);

Electmla

Radiola

9-18

241

7-26;

Radiola

9-54;

Electrola

10-70

242

Victor

Radio

R-14

242A

Victor

Radio

R-15 .

266D

Victor

Micro-

Synchronous

Mod-

els

R-35, R-39,

RE-

57

266E

Radiola

Division

RCA

Centralized

Radio

System

49

Radiola

Senior;

Radiola

RS;

Radiola

III;

Radiola

AC

Am-

plifier;

AR;

Balanced

Am-

plifier,

Radiola

VII

243

Radiola

V;

VI;

II;

IV

244

Radiola

IIIA;

IX; Superhetero-

dyne;

Radiola

Grand

245

Radiola

16;

AP-

937;

VIIB

246

Radiola

20;

Radiola

30

217

67

248

Super

VIII (

AR-

810), "

semi-

portable" (

AR-

812),

24

and

26

249

Radiola

25

250

46

D.C.;

33 . ______

251

Radiola

17;

Radiola

60;

Radio-

la

18

252

33 D.C.

253

28 (

battery

operated);

loud-

speaker

104

RPA

unit . ___

254

47

255

Radiola

64;

AP-

951;

AP-

935 256

Radiola

41:

Sterling

SPU;

Re-

ceptor

SPU;

Loudspeaker

105

257

Radiola

67

258

Radiola

47

259

Radio's

50;

51

260

41

D.C.;

61

D.C. .

261

18

D.C.;

62

262

Radiola

66

30-A

25

cy;

21 &

22;

30A

RPA

Unit

Brunswick

RPA-4

with

Pana

-

trope

and

panel

connection

8-

tube

panel);

APIA

with

Panatrope

and

panel

conn.

Radiola

44

chassis;

32

RPA

unit

Radiola

44;

Models

3 &

10

(Brunswick)

RCA

R-80

RCA

86

Audio

frequency

circuits (

86)

RCA

82

Radiola

28

A.C.;

RCA

Loud-

speaker

106

Radiola

48,

same

as

Victor

15

Radiola

42

Radiola

24

and

104

power

speaker

263

STEINITE

RADIO

COMPANY

50-A &

102-A

282

264

991, 992,

993;

261 &

262 283

Model

40

power

pack

28

267

266A

266B

266C

266D

STERLING

MANUFACTURING

CO.

265 No.

4;

No.

4

chassis,

power

266

unit,

and

speaker

284

No.

4

speaker;

No.

4

power

unit;

No.

3A

chassis ..

285

266F

2661)

242A

24213

RADIO

SERVICE

OSCILLATOR

76J

REMLER

RADIO

CORP.

45

KC

Superheterodyne

Cameo

Model

14

ROBERTSON-DAVIS

CO.

Melo-Heald

11-

tube

Superhe-

terodyne

286

287

288

289

290

:3

;4

54

0

Models

R-

100A,

AF,

B,

BF,

E,

290A

Series

900

g

and

EF

291

357

SEARS,

ROEBUCK &

CO.

Silvertone

Models

F,

G,

H,

J,

same

as

King

207, 208,

209

Silvertone

F,

FF.

G,

H,

J

200B

SILVER-

MARSHALL,

INC.

Models

30 (

chassis),

60

Lowboy,

95

Highway

and

75

Concert

Grand

268

720

A.C. ... _____

59

S.M.

690

Public

Address

System

340

33-A

power

supply (

25 &

60

cy.);

1929

9-

tube

S.G.

sup-

heterodyne

268A

Model

34-A;

Model

35-A

268B

Silver

Marshall

Super

with

Model

36A

Chassis

and

32A

Power

Pack

268C

722

Band

Selector

7;

SM-712

Tuner;

724

A.C.

Receiver

268D

SONORA

PHONOGRAPH

CO.

INC.

Model

2RP-25

269

3R

and

4R

270

3

RP

271

5R

272

7P

273

B-31 (

25

cycle);

Phonograph

automatic

stop

274

SPARKS-WITHINGTON

CO.

Sparton

Model

39;

89A

275

49;

9-30

276

931

and

301

D.C.

277

6-26,

6-16;

A.C.

62-63 &

A.C.

7

278

A.C.-89;

DeLuxe

109

279

Sparks

Ensemble

280

5-26,

5-15;

Model

110

281

Sparton

931

A.C. .

280B

Equasonne

Model

589

280C

Sparton

Model

301

A.C.

280D

SPIEGEL,

MAY,

STERN

CO.

"Melrose"—

same

as

Apex

41

306

SPLITDORF

ELECTRIC

MFG.

CO.

R-200;

PAD-

4;

ABBEY (

with

volume

control

322

ABBEY

Model

171 ..

324

Splitdorf

Model

M5,

R.V.-695

322A

Model

M-6;

R-100

322E

STANDARD

RADIO

CORP.

A.C.

Model

29

342

STEWART-WARNER

CORP.

305-315-320;

300;

310-325;

330;

335-340;

345-350-355-360;

385-390

500-520-525;

700-706-710;

530-

535;

715-720 .

Power

unit

models

530-535-715-

720;

Power

units

models

801-

801A-

811-811A —

series

B;

Model

806

series

B

Model

750;

950

series

battery

S.G.

950

D.C.;

950

25 &

60

cycle

A.C.

STORY

AND

CLARK

RADIO

CORP.

Model

36

tuner

unit;

Model

36

power

pack;

Model

42

and

51

tuner

unit _

29013

STROM

BERG-CARLSON

MFG.

CO.

Circuit

D-968;

523 &

524;

635

&

636

292

641 &

642 ___

293

638

D.C.;

652 &

654 294

846 295

403

AA

audio

power

unit,

404

RA

and

404

RAC

SPU;

403

B

audio

power

unit

296

635

D.C.;

601 &

602

battery

297

No.

1-B;

403 &

403A

power

pack;

No.

10

and

11

receivers

298

No.

704-B;

501 &

502 299

No.

734-B;

633 &

634 300

g,

No.

14

phonograph

diagram;

No.

638

A &

B

300A

te.

No.

12 &

No.

14

300B

g"

TELEPHONE

MAINTENANCE

CO.

Telmaco

P-1 .

35,S

TEMPLE

CORPORATION

8-60, 8-80,

8-90

8-61,

8-81,

8-91 301

302

TRANSFORMER

CORP.

OF

AMER-

ICA

Clarion

AC-

53,

AC-

55, 25,

51-

25,

53 -

25,

55

328

Clarion

Jr.

Model

60 .

355

TRAV-LER

MFG.

CO.

Model

6 &

7;

DC &

AC

power

packs .

332

UNITED

AIR

CLEANER

CO.

Sentinel

660

9-

tube;

Sentinel

666-C

9-

tube

chassis

for

phonograph

combination :

146

E

a

_

: : :

IIIIIIMMIIMMOMM=Illiilli111131:1111111111I:111;11111111

I I 1 1 1

LI

I 1 I 1 I I I I I I 1 1 1

Mali!

M 1 I

1111811181111111111111

CD

OFFICIAL

RADIO

SERVICE

MANUAL

MMIL

T

ITEIMI"T"er""""

e

""Tr

e

lturnemmuniumenumminimunz==smemm=minTErmutum.w.L.ner

NCB"

"

Jr_

del Mo

444

and

044

7-

ub te

..G S

348

entinel S

,104

for

odes ml

,11

,12

15

and

16 _

463A

Sentnel i

8

and

;9

33 31-

and

power

pack

4B 36

U.

S.

RADIO &

TELEVISION

CO.

(See

Montgomery

Ward &

Co.)

Model

80;

Apex

48 -

60

cycle,

48A -

25

cycle

306

Apex

41 -

60

cycle,

43 -

25

cy-

cle;

42 -

60

cycle,

44 -

25

cy-

cle

306

Ap_x

46 &

47 -

60

cycle,

46A

&

47A,

25

cycle;

Model

30

Automotive

307

UNITED

REPRODUCERS

CORP.

(Peerless)

Courier "

65"

chas-

sis;

Series

K-70

303

Series

20

Electrostatic

(Kylectron)

304

WELLS

GARDNER

CO.

(See

Montgomery

Ward &

Co.)

Wells

Gardner

Co.

Nine-

in-

Line

same

as

Gulbransen -

see

page

197

WESTINGHOUSE

ELECTRIC &

MFG.

CO.

WR5

--------------------------------------------266A

WR7

266B

WR6 .

266D

WILLARD

STORAGE

BA'ITERY

CO.

"B"

power

units

No.

3096;

4096;

3310 &

4310: "

A"

pow-

er

units

No.

3280; 3262;

3290 &

3390

304A

"A-

B"

units

No.

3301;

6301;

4301 . .

304B

WURLITZER

(See

All

American

Mohawk

Crop.)

ZENITH

RADIO

CORP.

11E &

14E;

11-12-14

308

17-

series

filament,

4R;

ZE10

power

supply;

2E-5

power

supply

for

model

17

309

33X &

362X

6-

tube

electric;

34P &

342P

6-

tube

electric

310

Model

27;

31 &

32 -

311

ZE

4 "

Jr

power

supply;

ZE3

"A"

power

supply;

models

33-34-35;

35A-

342-352-352A-

362 312

35P-35AP-352P-352AP;

37A

313

ZE14

power

supply;

ZE1

1

pow-

TRADE

NAME

INDEX

Acme-

Acme

Electric

Co.

Airline--

Montgomery,

Ward &

Co.

Amertran-American

Transformer

Co.

Amrad-Amrad

Corp.

Apex-

United

States

Radio &

Televis-

ion

Co.

Arcadia-

Wells

Gardner

Co.

Argus-

Argus

Radio

Corp.

Atchison-

Atchison

Radio

Mfg.

Co.

Atwater

Kent-

Atwater

Kent

Mfg.

Co.

Audiola-Audiola

Radio

Co.

Aztec-

Stein,

Fred

W.

Baldwin-

Nathaniel

Baldwin

Co.

Balkite-National

Transformer

Mfg.

Co.

(Balkite

Sales

Division)

Bosch-

American

Bosch

Magneto

Corp.

Brandes-Kolster

Radio

Corp.

Bremer

Tully-

Bremer

Tully

Mfg.

Co.

(Now

Brunswick

Radio

Co.)

Browning

Drake-

Browning

Drake

Corp.

Brunswick-

Brunswick

Balke

Collender

Co.

(Brunswick

Radio

Co.)

Buckingham-

Buckingham

Radio

Co.

Bush &

Lane-

Bush &

Lane

Piano

Co.

Capehart

Orchestrope-Capehart

Corp.

Webster

Elec.

Co.

Cardinal-

Long

Radio

Co.

Cardon

-

Sparks

-

Cardon

-

Sparks

Phono

-

craft

Corp.

Carteret-

Carteret

Radio

Lab.

Clarion-

Transformer

Corp.

of

Amer-

ica.

Cleartone--Cleartone

Radio

Corp.

Div.

of

Cincinnati

Time

Recorder.

Colonial-

Colonial

Radio

Corp.

Columbia-

Columbia

Phonograph

Co.

(Columbia

Radio

Co.)

Counterphase-Bremer

Tully

Mfg.

Co.

Courier-

United

Reproducers

Corp.

(Now

Gray

Electric

Co.)

Crosley-Crosley

Radio

Co.

Day

Fan-

General

Motors

Radio

Corp.

DeForest-DeForest

Radio

Co.

Delco-

Delco

Radio

Corp.

Earl-

Freed

Radio

Corp.

Edison-

Edison,

Thomas

A.,

Inc.

Electrad-Electrad.

Inc.

Emerson-Emet•son

Radio &

Phono-

graph

Corp.

Erla- -

Electrical

Research

Laboratories.

Eveready- --

National

Carbon

Co.

Fada

-

Andrea,

F.

A.

D.,

Inc.

Federal- -

Federal

Radio

Corp.

Find-

All --

Find-All

Radio

Co.

Freed

Eisemann-Freed

Radio

Co.

Freshman-

Freed

Radio

Co.

General

Motors-

General

Motors

Radio

Corp.

Gilbert -

Gilbert,

R.

W.

Gilfillan-Gilfillan

Bros.

Inc.

Graybar-Graybar

Electric

Co.

Grebe -

Grebe

Radio

Co.,

A.

H.

Gulbransen-Gulbransen

Co.

Hammarlund-Hammarlund

Mfg.

Co.

Howard-

Howard

Radio

Co.

Hyatt-

Hyatt

Electrical

Corp.

ICA-Insuline

Corp.

of

America.

Jackson

Bell-

Jackson

Research

Lab.

Jesse

French-

Jesse

French &

Sons

Piano

Co.

Kellogg-

Kellogg

Swbd. &

Supply

Co.

Kemper-Keitiper

Radio

Corp.,

Ltd.

Kennedy-

Kennedy

Corp.,

Colin

B.

King-

King

Mfg.

Corp.

Kolster-Kolster

Radio

Corp.

Kylectron-United

Reproducers

Corp.

(Now

Gray

Electric

Co.)

Leutz-Leutz,

Inc.,

C.

R.

Lincoln-

Lincoln

Radio

Corp.

Loftin

White-(

See

Electrad)

Lyric -

All

American

Mohawk

Corp.

Majestic-

Grigsby

Grunow

Co.

Marti-

Marti Radio

Corp.

Master-

Master

Radio

Mfg.

Co.

Ltd.

McMillan-

McMillan

Radio

Co.

Melo

Heald-

Robertson

Davis

Co.

Melorad

Cathedral-

Federated

Pur-

chasers.

Minera

-

Minerva

Radio

Co.

National-

National

Transformer

Mfg.

Co.

Navigator-

A.

C.

Dayton

Co.

Orpheus-

Roth-

Downs

Mfg.

Co.

Patterson-

Patterson

Radio

Corp.

Peerless-

United

Reproducers

Corp.

(Now

Gray

Electric

Co.'

er

supply;

ZE13

power

sup-

ply;

ZE15

power

supply 314

39-

39A-

392-392A;

40A

315

35PX-35APX-352PX-352APX-

37A;

333-353A

6-

tube

D.C.

set

316

ZE17

power

supply;

ZE18

pow-

er

supply;

Models

60,

61, 62,

602,

612 &

622

without

loop;

64,

67,

642 &

672

with

loop

317

15 &

16;

15E,

15EP,

16E,

16EP;

42 &

422

318

ZE16

power

supply;

ZE12

pow-

er

supply;

Models

41 &

412

319

Models

52 &

53;

54

320

Model

70 (

71,

72,

73 &

77 -

60

cycle;

712,

722,

732 &

772

25

cycle)

321

MISCELLANEOUS

CIRCUITS

Aerodyne

Six

344

Ambassador

Four

344

Magnavox

TRF-5

and

TRF-50

344

Continental

Wireless

and

Sup-

ply

Co. "

Voice

of

the

Road"

Automotive

344

Magnaformer

9-8

Superhetero-

dyne

352

Blair

TRF

6-

tube

receiver

342

St.

James

Superheterodyne _

336

Madison

Moore

Superhetero-

dyne

336

Victoreen

Superheterodyne

336

Garod

Neutrodyne

358

Grimes

4-

DL

Inverse

Duplex

368

Zaney-Gill

Receiver

358A

Mission

Bell

and

Royale

358A

Philco-Philadelphia

Storage

Batters

Co.

Pierce

Airo-Pierce

Airo,

Inc.

Pilot-

Pilot

Radio &

Tube

Corp.

Pioneer-

Pioneer

Radio

Corp.

Priess-Priess

Radio

Co.

Premier-

Premier

Electric

Co.

Radiette-Keller

Fuller

Mfg.

Co.

Ltd.

Radiola-R.

C.

A.

Victor

Co.

Radiotrope-U.

S.

Radio &

Television

Co.

Ranger-

Brown &

Manhart

Republic-

Republic

Radio

Co.

Sentinel-

United

Air Cleaner

Co.

Seven-

Seas-

Levitz,

Inc.,

C.

R.

Silver-

Silver

Marshall,

Inc.

Silvertone-Sears,

Roebuck &

Co.

Simplex-

Simplex

Radio

Co.

Sonora-

Sonora

Phonograph

Co.

Inc.

Sparton-Sparks

Withington

Co.

Splitdorf-Edison,

Thomas

A.,

Inc.

Star

Raider-

Continental

Radio

Co.

Steinite-Steinite

Radio

Co.

Sterling-

Sterling

Mfg.

Co.

Stewart

Warner-

Stewart

Warner

Corp.

Story &

Clark-

Story &

Clark

Radio

Corp.

Stromberg

Carlson-Stromberg

Carl-

son

Tele.

Mfg.

Co.

Telmaco-Telephone

Maintenance

Co.

Temple-

Temple

Corp.

Tom

Thumb-

Automatic

Radio &

Mfg

Co.

Transitone-Automobile

Radio

Corp.

Trav-Ler-Trav-Ler

Mfg.

Co.

U.

S.

Radio-

U.

S.

Radio &

Television

Corp.

Vagabond

-

Vaga

Radio

Corp.

Victor-

R.

C.

A.

Victor

Co.

Victoreen-

Victoreen

Radio

Co.

Webster-

Webster

Electric

Co.

Westinghouse-

Westinghouse

Elec. &

Mfg.

Co.

Willard-

Willard

Storage

Battery

Co.

Work-

Rite-

Work-

Rite

Radio

Corp.

Wurlitzer---(See

All

American

Mo-

hawk

Corp.)

Zenith-

Zenith

Radio

Corp.

manmrmtrimin=rumitunuum iuom

iillUIIIUMUIIII11111111;11111111111

e

EdMirg111111111181811MIIIMniTII811:1111111881lliMMI/T -

133111111:illiiiiiIIIIIIMIUMMI11111MIMiliMMINIM118118111111111113;3111131111113

A

new

Jewell

Test

Oscillator

•

e

•

—with

every

necessary

test

Feature

•

—plus

Jewell

quality

construction

and

dependable

operation

—at

an

astonishing

low

prke

The

Jewell

Professional

Service

Combination

Here

is

combined

in

a

single

unit

all

the

testing

equipment

the

radio

service-

man

needs

for

quickly

and

accurately

per-

forming

every

service

task.

The

Jewell

Pattern

531

Professional

Service

Combination

includes

a

Jewell

Pattern

444

Set

Analyzer,

a

special

model

of

the

oscillator

described

to

the

right,

and

a

power

unit

that

supplies

all

neces-

sary

power

for

testing

tubes

in

the

ana-

lyzer.

No

separate

output

meter

is

needed

as

receiver

output

measuring

ranges

are

available

in

the

set

analyzer.

Write

for

complete

details.

J

11

31

YEARS

MAKING

GOOD

INSTRUMENTS

•

EWE

In

the

Pattern

563

Test

Oscillator,

Jewell

has

again

set

new

stand-

ards

in

value.

Now

no

serviceman

need

go

without

an adequate

oscillator

or

be

handicapped

by

an

inaccurate

or

undependable

instrument.

This

remarkable

instrument

combines

every

oscillator

feature

necessary

for

servicing

modern

radio

receivers,

and

Jewell

dependa-

bility

of

operation.

Features

of

the

Pattern

563

Output

frequency

continuously

variable

from

550

to

1,500

K.

C.

in

the

broadcast.

Two

intermediate

bands,

125

to

185

K

C.

and

175

to

450

K.

C.,

allow

servicing

of

all

modern

supers.

Metal

carrying

case

and

panel

form

effective

shield.

Operates

from

batteries

carried

within

shielded

case.

Single

control

adjusts

output

fre-

quency.

Three-

position

switch

allows

in-

stant

change

to

any

of

the

three

fre-

quency

bands.

Write

for

prices

and

Calibration

curves

and

operating

instructions

carried

in

cover.

Trimmer

adjustment

permits

spot-

ting

any

much

used

intermediate

fre-

quency

at

a

convenient

point

on

the

dial.

Space

provided

in

case

for

carrying

Jewell

Pattern

559

Output

Meter,

which

may

be

purchased

separately.

Completely

equipped

with

shielded

output

lead,

calibration

curves,

in-

struction

chart.

one '

30

type

tube,

and

all

necessary

batteries.

Handsomely

finished

metal

carry-

ing

case

protects

the

instrument

from

damage

and

provides

an

effective

shield

for

the

oscillator.

complete

description.

Jewell

Electrical

Instrument

Company,

1642-V

Walnut

Street,

Chicago,

Ill. •

Please

send

me

literature

describing

the

new

Jewell

instruments,

Patterns

563

and

531.

Name

Address

City

State

4

OFFICIAL

RADI

0

SERVICE

MANUAL

1,1

,.,,,

mumlimaullnummun

iv

r.,..-

=

„„,„„..,,,,,,,,:,:er

erumuir

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INDEX

TO

COMMERCIAL

WIRING

DIAGRAMS

W

ITH

the

issuance

of

each

set

of

supplements,

a

completely

revised

and

up-to-date

index

is

furnished.

To

use

this

first

remove

all

of

the

pages

from

the cover;

throw

away

the

old

index

pages

and

replace

them

with

the

new

ones;

and

then

insert

the

supplement

pages

in

their

numerical

and

alphabetical

order.

Then

replace

the

cover

and

the

book

ri

is

complete.

Often,

the

trade

name

of

a

set

is

known

by

the

user

of this

book

but

the

name

of

the

manufacturer

not

known.

In

searching

for

diagrams,

if

the

particular

diagram

you

desire

cannot

be

found,

be

sure

to

look

through

the

Mis-

à-

cellaneous

section

at-

the

end

of

this

index.

If

it

is

not

listed

there

look

through

the

Trade

Name

Index;

this

gives

the

name

E

of

the

manufacturer

for

each

trade

name.

Since

all

diagrams

are

listed

in

the

index

in

alphabetical

order

in

accordance

with

the

manufacturers'

names,

it is

absolutely

necessary

to

know

the

name

of

the

manufacturer

before

a

particular

e":

diagram

can

be

found.

ri

In

the

supplements

are

included

diagrams

for

which

we

have

received

requests.

Wherever

the

diagrams

that

have

been

requested

are

not

included

in

one

set

of

supplements,

th

ey

will

appear

in

the

first

set

published

after

we

receive

them.

Many

diagrams

of

obsolete

sets

are

difficult

to

obtain,

but

we

are

using every

possible

effort

to

procure

them.

We

wish

to

express

our

thanks

to

the

many

subscribers

who

have

taken

such

extreme

interest

in

the

MANUAL,

a

and

especially

to

those

who

have

voluntarily

submitted

diagrams

for

publication

in

the

supplements.-

THE

PUBLISHERS.

.:

51

WATTAGE

OF

RECEIVERS. .. .

76N

0

PHONO

-

RADIO

INSTALLATION

76M

a.

R.

M.

A.

COLOR

CODE

76M

pi

METER

MULTIPLIERS

76P

Fj.

e•

A

A.

C.

DAYTON

CO.

r9.

XL-

20;

XL-

25;

XL-

30

77

.1-

XL-

61;

AC-

66

78

E

AC-

6;;;

AC-

65

79

F.-

-

-*

XL-

5;

Navigator,

Navigator

ET

-

Power

p.

80

!!!!!1ffillfin!=!

XL-

10;

XL-

70

Ei

XL-

60;

XL-50A.0

el

ACME

ELECTRIC

CO.

t-u

Model

S.G.

88;

A.C.-7

ALL

AMERICAN

MOHAWK

CORP.

6

and

8

tube

A.C. "

W"

Power

Pack

Lyric

models

60, 61,

62,

65

and

66

Lyric

models

80,

83, 84, 85, 86,

88

70,

73

and

75;

No.

90

chassis,

60

cycle

No.

90

chassis

25

cycle;

No.

96

chassis,

60

cycle

Mohawk

one

dial

battery

and

A.C.

226-227

85

Model

D.

Lyric

Receivers 84A

Model

44;

Model

H

84B

All

American

Lyric

B-

94 358C

ALLIED

RADIO

CO.

(Same

as

Columbia

Radio

Co.)

AMERICAN

BOSCH

MAGNETO

CORP.

16

Amborola;

27

Amborada;

4b

The

Little

Six;

57 &

87

86

Cruiser,

Royal

Cruiser

and

Im-

perial

Cruiser

model

35

bat-

tery

sets

87

Models

66, 76,

and

76L

the

Cruiser;

Models

66AC,

96.

116,

136

for

A.C.;

Model

107

for

A.C.;

Models

126, 146,

166,

176,

46A.0

88

Model

96

D.C.

110

V.

Cruiser;

Model

156

Cruiser;

Model

28;

Model

825

Super

Dy-

namic

Power

Pack

89

Models

48

and

49;

Type

BAN

edition

2

Nobattery;

Type

BAN

edition

3

and

4

No-

=

battery;

Types

BAN

edition

6

and

6

Nobattery

Model

54

D.C.

receiver;

Bosch

Motor

Car

receiver

Model

60

Volume

Control

Re-

Model

60

and

61 (

Automatic

Cone

Model

58,

59

Model

61,

62

ceiver

Model

5

Volume /

mil

:.•

90

ti

91

90A

El

90B

90C

90D

90E

......

82

5

!leg,

_

entr,

,

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- "!"'"

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1.0

••• .

1

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" ""

1

"11""”"!""'

-

111111MHZIIMIIMMIIIIIIUMIIIIMMMIMIIIMIIIIIMIIIMMIIIILq!!!!!!!

In

order

that

there

will

not

be

any

conflict

between

the 1931

Manual

and the

1932

edition

of

the

Manual,

we

have

combined

Supplements

five

and

six

of

the

1931

Manual

and

have

issued

them

both

together

under

one index.

These

Supplements

you

are

receiving

here

with

complete

your

subscription

and

wind

up

all

the

material

you

will

receive

for

the

1931

edition.

We

now

urge

you,

if

you

have

not

already

done

so

to

place

your

order

immediately

for

the

1932

Manual,

which

together

with

all

Supplements

for

one

year

will

cost

you

only $

5.00.

None

of

the

material

contained

in

the

1931

edition

and the

Supplements

will

be

repeated

in

the

new

Manual.

Therefore,

to

have

a

complete

JEWELL Pattern 444 User manual

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