Hallicrafters S-85 User guide

92X2341

Fig.

J.

Model

5-85

SECTION

1.

GENERAL

DESCRIPTION

Your

new

Hallicrafters

S-85

Communications

Receiver

offers

you

the

finest

in

world

wide

radio

reception

with

con-

tinuous

frequency

coverage

from

538

kilocycles

to

34

megacycles.

You'll

hear

foreign

and

domestic

shortwave

broadcasts,

amateurs,

police,

aircraft

,

ships,

and

countless

other

exciting

distant

stations

...

as

well

as

all

your

favorite

programs

on

standard

broadcast.

The

receiver

employs

7

tubes

plus

rectifier

in

the

latest

type

super-

heterodyne

cirCuit

and

provides

for

the

reception

of

voice

and

code

signals

over

its

entire

tuning

range.

A

powerful

built-in

Alnico

V

permanent

magnet

speaker

and

full

range

tone

control

assure

lifelike

reproduction

.

Good

reception

is

usually

possible

without

an

outside

antenna

or

ground.

In

most

localities,

satisfactory

results

can

be

obtained

with

just

the

I5-foot

antenna

wire

included

with

your

receiver.

Special

features

incorporated

in

your

receiver

include

calibrated

electrical

bandspread

for

fine

tuning

of

the

amateur

and

shortwave

bands,

an

automatic

series

noise

limiter

circuit

for

redUCing

the

effects

of

ignition

noise

and

electrical

interference,

a

front

panel

jack

for

headphones

, a

sensitivity

control,

an

automatic

volume

control

circuit,

and

a

receive-standby

switch

which

permits

you

to

silence

the

receiver

without

turning

it

off.

IMPORTANT

Your

careful

attention

is

especially

invited

to

the

installation

and

operating

instructions.

They

have

been

provided

to

insure

the

satisfaction

you

have

a

right

to

expect

from

a

Hallicrafters

"Precision

Built"

product.

Your

receiver

has

an

unusually

high

degree

of

sensitivity

necessary

to

receive

weak

and

distant

stations.

Careless

operation

of a

high

sensitivity

receiver

may

result

in

excess

noise

or

b

ack

ground

hiss.

These

undesirable

effects

can

be

held

to

a

mini-

mum

by

careful

adjustment

of

the

sensitivity,

tuning, and tone

controls

as

well

as

the

proper

selection

and

arrangement

of

the

antenna.

- 2 -

SECTION

2.

INSTALLATION

2-1.

UNPACKING

After

unpacking

the

receiver,

examine

it

closely

for

damage

which

may

have

occured

in

transit.

Should

any

sign

of

damage

be

apparent,

file

a

claim

immediately

with

the

carrier

stating

the

extent

of

damage.

Carefully

check

all

shipping

labels

and

tags

for

instructions

before

removing

or

destroying

them.

2-2· LOCATION

The

receiver

is

equipped

with

rubber

mounting

feet

for

table

or

shelf

mounting.

When

locating

the

receiver,

avoid

excessively

warm

locations

such

as

those

near

radiators

and

heating

vents.

Allow

at

least

one

inch

of

clearance

between

the

back

of

the

receiver

and

the

wall

for

proper

ventilation.

2-3. POWER

SOURCE

The

S-85

receiver

is

designed

to

operate

from

a

105-125

volt,

50-60

cycle

AC

power

source.

The

universal

model,

the

S-85U,

is

designed

for

operation

from

110, 130, 150, 220,

and

250

volt,

25-60

cycle

AC

sources.

H

in

doubt

about

your

power

source,

contact

your

local

power

company

before

plugging

in

the

receiver.

CAUTION:

The

power

selector

switch

on

the

S-85U

is

located

on

the

top

of

the

power

transformer

and

is

accessible

by

opening

the

hinged

top

cover

of

the

cabinet.

This

switch

must

be

set

to

correspond

with

the

voltage

at

the

power

outlet

before

plugging

in

the

receiver.

Failure

to

observe

this

precaution

may

result

in

serious

damage.

2-4. ANTENNAS

The

r-f

input

of

the

receiver

is

designed

for

operation

from

either

a

single-wire

antenna,

or

a

half-wave

doublet

or

other

tuned

antenna

with

transmission

line

impedances

from

52

to

600

ohms.

Antenna

connections

are

made

to a

three-terminal

strip

at

th€

rear

of

the

receiver

marked

"AI",

"A2",

and

"G".

A. SINGLE WIRE ANTENNA

The

simplest

antenna

and

one

which

will

provide

satis-

factory

results

throughout

the

entire

tuning

range

is

a

conventional

single-Wire

antenna.

In

most

localities,

good

results

can

be

obtained

with

just

the

15-foot

length

of

antenna

wire

supplied

with

the

receiver.

Simply

attach

one

end of

this

wire

to

terminal

"AI",

connect

the

jumper

link

between

terminals

"A2"

and

"G",

and

then

run

the

wire

about

the

room

in

any

convenient

manner.

(See

Fig.

2.)

H

the

receiver

is

operated

in a

steel

constructed

building

or

where

receiving

conditions

are

exceptionally

poor,

an

out-

s ide

antenna,

50

to

100

feet

long,

may

be

necessary.

The

outside

antenna

should

be

erected

as

high

as

possible

and

kept

free

from

surrounding

objects.

In

some

locations,

reception

may

be

improved

by

connecting

a

ground

wire

(ordinary

copper

wire)

from

terminal

"G"

to

a

cold

water

pipe

or

outside

ground

rod.

While

the

use

of

an

outside

ground

rod

installed

in

accordance

with

Insurance

Under-

writer's

Laboratories

requirements

is

adequate

protection

against

lightning,

we

strongly

recommend

an

additional

connection

to

the

nearest

cold

water

pipe

to

eliminate

any

shock

hazard.

B.

HALF-WAVE DOUBLET ANTENNA

For

top

performance,

especially

on

the

shortwave

and

amateur

bands,

the

use

of a

half-wave

doublet

or

other

type

of

antenna

employing

a

52

to

600-ohm

transmission

line

is

recommended.

A

typical

doublet

antenna

installation

is

shown

in

Fig.

3.

The

doublet

antenna

should

be

cut

to

the

proper

length

for

the

most

used

frequency

or

band

of

fre-

quencies.

The

overall.,!ength

in

feet

of

a

doublet

antenna

is

determ

ined by

the

following

formula:

468

Length

in

feet

=

Frequency

in

megacycles

-

over-

- 3 -

928432-8

Fig.

2.

Single

Wire

Antenna

f-I

_.

----

L (mTJ =

-=FR'""EO~~:N~8CY'-"(M""CJ-

---~'-II

NOTE

SOLDER

ALL

JOINTS

INSULATOR

Fig. 3.

Doublet

Antenna

Using

Twin-Lead Lead-In

92C1826-A

When

erecting

the

doublet antenna, it should

be

remembered

that

it

displays

directional

properties

broadside

to

its

length and should

be

so

oriented

with

respect

to

a

desired

station

for

maximum

signal

pickup.

The

doublet

antenna

may

be

fed with

either

a

balanced

or

unbalanced

transmission

line.

When a balanced

trans-

mission

line

such

as

"twin-lead"

or

a

twisted

pair

is

used, the

transmission

line

connects

to

terminals

"AI"

and "A2",

and

the

jumper

link between

terminals

"A2" aLd "G"

is

disconnected.

When using

an

unbalanced

transmission

line

such

as

coaxial

cable,

the

inner

conductor

connects

to

terminal

"AI"

the

outer

braid

connects

to

terminal

"A2", and

the

jumper

link

connects

between

terminals

"A2" and

"G".

A

gr~und

wire

may

improve

reception

when

using

an

unbalanced

transmission

line.

The

doublet

antenna

provides

optimum

performance

only

at

the

frequency

for

which it

is

cut.

Therefore,

it

may

be

desirable

for

reception

on

frequencies

remote

from

the

antenna

frequency to

utilize

the

antenna

as

a

single

wire

type.

This

is

accomplished

by connecting

the

two

transmission

line

leads

together

and

connecting

them

to

terminal

"AI".

The

jumper

link

in

this

case

should

be

connected between

terminals

"A2" and "G".

In

an

installation

where

the

receiver

is

used

in conjunction with a

transmitter,

it

may

be

advantageous

to

use

the

same

ant'enna

for

receiving

as

for

transmitting.

This

is

especially

true

when a

directive

antenna

is

used

since

the

directive

effects

and

power

gain

of the

transmitting

antenna

are

the

same

for

receiving

as

for

transmitting.

Switching

of

the

antenna

from

the

transmitter

to

the

receiver

may

be

accomplished

with a

double-pole,

double-throw

antenna

changeover

relay

or

knife

switch

connected in the

antenna

leads.

For

further

information

regarding

antennas,

refer

to

the

"Radio

Amateur's

Handbook"

or

the

"A.R.R.L.

Antenna

Book", both

published

by

the

American

Radio Relay League,

West

Hartford,

Conn., U.S.A.

2-5.

HEADPHONES

The headphone

jack,

marked

"Phones",

is

located

on

the

front

panel of

the

receiver

and

is

wired

so

that

the

speaker

is

autoroatically

disabled

when

the

headphones

are

plugged in. The headphone output impedance

is

not

critical

and any

commercial

headphones

may

be used,

including

crystal

types,

as

no

direct

current

flows

in

the

headphone

circuit.

For

maximum

headphone output, the

use

of

crystal

phones

or

high-impedance

magnetiC

phones

(5000

ohms

or

higher)

is

recommended.

SECTION

3.

OPERATION

Each

control

of

your

receiver

performs

a

definite

function which

contributes

to

its

outstanding

reception

capa-

biIities.

Full

appreciation

of

the

receiver

is

to

be

expected

only

after

you have

become

familiar

with

each

of

the

controls

and

the

effect

each

control

has

on

the

performance

of the

receiver.

As

a

special

convenience

for

those

not

yet

familiar

with the full

advantages

of

the

various

controls,

the

control

settings

commonly

used

for

broadcast

reception

are

marked

with a dot.

SENSITIVITY Control -The

Sensitivity

control

is

used

in

conjunction with the Volume

control

to

regulate

receiver

volume.

The

setting

of

the

Sensitivity

control

determines

the

ability

of the

receiver

to

pick

up weak

distant

stations.

For

AM

reception,

the

Sensitivity

control

should

normally

be

set

fully

clockwise

for

maximum

signal

pickup.

In

some

instances,

the

signal

may

be

too

strong

with

the

control

set

at

maximum

and

as

a

result,

may sound

distorted

or

cause

excessive

background

noise

or

hiss.

When

this

occurs,

simply

reduce

the

sensitivity

of the receive;r

slightly

by

turning

the

control

counterclockwise.

If

after

decreaSing

the

sensitivity

you

need

more

VOlume,

use

the

Volume

control.

For

CW

reception,

set

the

Volume

control

at

a

well

advanced

position

and

vary

the

receiver

volume

level

by

means

of the

Sensitivity

control,

taking

care

not

to

advance

the

control

to a point

where

strong

signals

will

cause

excessive

"thumping". (overloading).

BAND

SELECTOR Control -The Band

Selector

control

should be

set

for

the band you

wish

to

tune. The four

positions

of

this

control

correspond

to the band

numbers

at

the

bottom of

the

left-hand

or

main

tuning

dial.

VOLUME Control -

This

control

is

used

to

regulate

receiver

volume.

Clockwise

rotation

increases

volume;

counter-

clockwise

rotation

decreaseli

volume.

AVC Switch -The

AVC

switch, when

set

at

"ON",

places

the

automatic

volume

control

circuit

in

operation

to

maintain

a

uniform

volume

level

regardless

of

variations

in

signal

strength

at

the

antenna.

For

AM

reception,

this

switch

should

normally

be

set

at

"ON".

For

CW

reception,

the

switch

should be

set

at

"OFF".

NOISE LIMITER Switch -

This

switch

should

normally

be

set

at

"OFF".

If

severe

electrical

disturbances,

ignition

nOise,

or

other

types

of

pulse-type

noise

interfere

with

reception,

set

the

switch

at

"ON"

to

place

the

automatic

noise

limiter

circuit

in

operation.

..

4 -

AM-CW

Switch -

Set

this

switch

at

"AM"

to

listen

to

voice

broadcasts.

Set

it

at

''CW'' only if you

wish

to

hear

code

signals.

TONE

Control-

The Tone

control

is

a

combination

receiver

on-off

switch

and

3-position

tone

control.

In

the

"PWR

OFF"

position,

the

receiver

is

inoperative..

To

turn

the

receiver

on,

simply

rotate

the

control

to

any of

its

three

remaining

positions.

For

AM

reception,

set

the

control

for

the

desired

tonal quality.

For

CW

reception,

set

the

control

at

"LOW".

PITCH Control -

This

control

is

used

to

vary

the

pitch

of code

signals

and should

be

set

for

the tone

most

pleasing

to

the

operator.

For

this

control

to

have any

effect,

the

AM-CW

switch

must

be

s.et

at

"ew".

STANDBY-REC Switch -

This

switch,

normally

set

at

"REC",

permits

yU\l

to

silence

the

receiver

without

turning

it off.

To

silence

the

receiver,

set

the

switch

at

"STANDBY". In

this

position,

the

r-f

and i

-f

stages

are

cut

off

but

the

tube

heaters

remain

at

operating

temperature

for

instant

USe.

To

resume

reception

at

any

time,

simply

return

the

switch

to

the

"REC"

position.

TUNING

and BANDSPREAD Controls -

The

Tuning and

Bandspread

controls

are

used

in conjunction with one

another

to

tune in

the

desired

signal.

Wide tuning

is

performed

with the Tuning

control

and fine tuning with

the

Bandspread

control.

Main Tuning Dial. The

main

tuning

or

left-hand

dial

is

operated

by

the

Tuning

control.

This

dial

has

four

calibrated

scales,

one

for

each

of

the

four

frequen..::y

bands

covered

by

the

receiver.

It

also

contains

a

100-

division

logging

scale

for

accurately

logging

and

r.elocating

stations

of

special

interest.

The

main

tuning

dial

should

be

set

for

the

desired

station

frequency

after

the

Bandspread

control

has

been

set

fully

clockwise

(bandspread

tuning

capacitor

set

at

minimum

capacity).

IMPORTANT:

The

readings

on

the

main

tuning

dial

will

correspond

to

the

station

frequencies

only

if

the

Band-

spread

control

is

set

fully

clockwise.

If

it

is

set

at

any

other

setting,

the

additional

bandspread

capacity

added

to

the

main

tuning

capacity

will

throw

off

the

main

tuning

dial

calibration

because

the

receiver

has

been

cali-

brated

with

the

bandspread

tuning

capacitor

set

at

minimum

capacity.

The

dial

settings

for

the

80, 40, 20, 15, and 11-10

meter

amateur

bands

are

indicated

on the

main

tuning

dial

by white

dots.

When tuning

the

amateur

bands

with

the

bandspread

dial,

the

main

tuning

dial

must

be

set

at

the

dot

corresponding

to

the

desired

amateur

band. The 160

meter

amateur

band

is

indicated

on the

dial

by

three

short

double-weight

lines.

Bandspread Dial. The

bandspread

or

right

-hand

dial

is

operated

by

the

Bandspread

control.

This

dial

contains

five

scales

calibrated

for

the 80, 40, 20, 15, and 11-10

meter

amateur

bands.

These

five

scales

are

calibrated

to

read

receiver

frequency

directly

when the

main

tuning

dial

has

been

set

to

the index dot of

the

desired

amateur

band.

For

convenience

in tuning,

the

AM

phone

bands

are

indicated

on the

bandspread

dial

by

double-

weight

lines.

In addition

to

its

use

on

the

amateur

band.s,

the

bandspread

dial

may

also

be

utilized

as

a fine tuning

adjustment

over

any

portion

of

the

receiver

tuning

range.

Two

methods

of fine tuning

are

described

below.

a.

The

first

method

of fine tuning

is

used

when

it

is

desired

to

tune in a

single

signal

with

precision

accuracy.

First

the

Bandspread

control

is

set

a few

degrees

from

its

full

clockwise

position,

then

the

desired

signal

is

located

with

the

Tuning

control,

and finally the

signal

is

accurately

tuned in

by

"rocking"

the

Bandspread

control

(turning

it

slightly

to

the

left

and

right)

until

the

signal

is

loudest

and

clearest.

b.

The

second

method

of

fine

tuning

is

used

when

it

is

desired

to

tune

through

a

range

of

fre-

quencies,

such

as

a

group

of

shortwave

stations.

Set

the

Bandspread

control

fully

clockwise,

set

the

Tuning

control

for

the

high end of

the

selected

range

of

frequencies,

and

then

tune

through

the

range

with

the

Band-

spread

control.

Turning

the

Bandspread

control

counterclockwise

tunes

the

receiver

progressively

lower

in

frequency.

SERV1CE

OR OPERATING QUESTIONS -

For

any

further

information

regarding

operation

or

servicing

of

your

receiver,

contact

your

Hallicrafters

dealer.

The

Hallicrafters

Co.

maintains

an

extensive

system

of

authorized

service

centers

where

any

required

service

will

be

performed

promptly

and effiCiently

at

a

nominal

charge.

All

Hallicrafters

Authorized

Service

Centers

display

the

sign

shown

at

the

right.

For

the

location

of

the

one

nearest

you,

consult

your

dealer

or

telephone

directory.

The

Hallicrafters

Co.

reserves

the

privilege

of

making

reVlSlons in

current

production

of

equipment

and

assumes

no obligatIon

to

incor-

porate

these

revisions

in

earlier

models.

- 5 -

71~

~allitrafters

$-eeaee~

"

communications

equipment

SECTION

4.

ALIGNMENT

This

receiver

has

been

carefully

aligned

at

the

factory

by

specially

trained

personnel

using

precision

equipment.

Alignment

of

the

receiver

sbwld

.not

be

attempted

until

all

other

possible

causes

of

faulty

operation

have

been

investi-

gated.

Alignment

s'hould

not

be

required

unless

the

receiver

has

been

tampered

with

or

component

parts

have

been

replaced

in

the

r-f

or

i-f

stages.

Alignment

should

only

be

made

by

persons

familiar

with

communications

receivers

and

experienced

in

their

alignment.

Refer

to

Figs.

5

and

6

for

location

of

all

alignment

adjustments.

4-1. EQUIPMENT

REQUIRED

1. Signal

generator

covering

455

KC

to

28 MC.

Use

modulated

outpl!ll\:

fQr

Gwry

step

except

step

2.

2. Output

meter

(or

AC

scale

of VTVM). (lQnnect

meter

across

speaker

voice

coil

terminals.

3.

Non-metallic

alignment

tool.

4.

Standard

RTMA

dummy

antenna

shown in

Fig.

4.

5. 0.02 mfd.

capacitor.

4-2.

INITIAL CONTROL

SETTINGS

Band

Selector

.........

As

indicated

in

chart.

Sensitivity

and Volume

...........

Maximum

AM-CW

.........................

AM

Noise

Limiter

and

AVC . . . . . . . . .

..

Off

Rec-Standby

......................

Rec

Tone

..........................

High

Bandspread

. .

.........

Fully

clockwise

Tuning,

. . .

.....

As

indicated

in

chart.

4-3.

ALIGNMENT

PROCEDURE

•

The

local

oscillator

freque'!a-cy

ts

higher

than

the

signal

frequency

on

bands

1,

2,

'and 3,

and

lower

than

the

signal

frequency

on

band

4.

•

RF

alignment

can

be

made

with

chassis

in

cabi-

net.

Holes

in

bottom

of

cabinet

provide

access

to

all

RF

adjustments.

•

For

IF

alignment,

remove

chassis

from

cabinet.

•

Use

just

enough

generator

output

to

maintain

a

500

milliwatt

reading

on

the

output

meter.

IF

ALIGNMENT

Sic]nal

Generator

& Band

Generator

Receiver

Selector

Step

Connecdioft's

Frequency

Setting

1 High

side

thru

.02

mfd

capacitor

to

Gen -455

KC

1

8

of

6SA7

converter

tube

(V-2); Rec -

1.0

MC

low

side

to

chassis.

2 " "

f!

(Unmod.)

RF

ALIGNMENT

3 High Side

thru

RTMA

dummy

an-

28.0

MC

4

tenna

(Fig.

4)

to

antenna

terminal

"AI";

low

side

to

"A2".

Jumper

be-

tween

"A2"

and

"G".

14.0

MC

"

4 " 11.0 MC 3

5.1

MC

"

5 "

4.0

MC

2

1.8

MC

"

6 "

1.4

MC

1

.6

MC

If

--""

- 6 -

200MMF

20)JH

~(

L:J

400

400ll.

MMF

Fig. 4. RTMA

Dummy

Antenna

Adjust

for

Maximum

Output

o

92A15~9

Top

and

bottom

slugs

of

TI

(1st

IF),

T2

(2nd

IF),

and

T3

(3rd

IF).

Remove

Pitch

Control

knob

and

set

AM-

CW

switch

at

"CW".

USing

speaker

as

indicator,

adjust

Lll

(BFa)

for

"zero

beat".

After

completing

the

adjustment

replace

knob

with

indicator

line

in

top

center

position

and

return

AM-CW

switch

to

"AM". .

..

-----

C19

(osc.

trimmer),

C12

(mixer

trimmer),

and

C1

(antenna

trimmer)

L7

(osc.

slug).

L4

(mixer

slug),

and

Ll

(antenna

slug)

C20

(osc.

trimmer),

CI3

(mixer

trimmer),

and

C2

(antenna

trimmer)

L8

(osc.

slug),

L5

(mixer

slug),

and

L2

(antenna

slug)

C21

(osc.

trimmer),

C14

(mixer

trimmer),

and

C3

(antenna

trimmer)

L9

(osc.

slug)

C22

(osc.

trimmer),

CI5

(mixer

trimmer),

and

C4

(antenna

trimmer)

C25

(osc.

padder)

TYPE

44

[2:IF)

12

@

C5A

V3

==5=~s'C5B

1ST

IF

AMP

C5C

r;l

=r=:=:r==

l!lliU

@V2TI

CONVERTER

1,:llllilllllllllllrlillllllillillll:

II

I I

@

V4

.

2ND

IF

AMP

[3:1F)

13

e

V7

DET.

AVC.

1ANL

f5v3\

~

~==_

~

r

'\

T5

RE~~FIER

I

G~~~'-===~

V5@®K6

BfO

A

6SC7

GT

AUDIO

AMP

V6

AUDIO

OUTPUT

TYPE

44

•

PITCH

CONTROL

KNOB

. . d

Alignment

Ad;ustments

h • Showing Tube Locations an. T View

of

CassIs

F,g.

S.

op

'-----@

0

@

em

c:::::::)

13

3RD

IF

'1111:lllllllllilllll'~I,IIIIII!IIIIIIIIII~liIl!~'11

L

Ili~llill'llllilllllllllllill!II'I:II'1111111111111111

F· 6 Bottom View

of

ChassIs .

..

ent

Adjustments

. Showing Tube Locations

and

A"gnm

.g. • - 7 -

92C23~O

92D23~2

SECTION

5.

SERVICE

5-1. TECHNICAL SPECIFICATIONS

TUBES:

..............

Eight including

rectifier

SPEAKER: . . . . .

..

5-inch

PM;

3.2-ohm

voice

coil

HEADPHONE OUTPUT:

........

High

impedance

(See

Section

2-5.)

ANTENNA INPUT:

.....

For

single

wire

or

52-600

ohm

balanced

or

unbalanced line.

POWER SOURCE:

Model

S-85

...

105-125

volts,

50-60

cycles

AC

Model S-85U

..

100-250

volts,

25-60

cycles

AC

POWER CONSUMPTION:

.............

75

watts

RECEPTION:

..................

AM

and

CW

INTERMEDIATE FREQUENCY:

........

455

KC

SIZE:

.............

18-1/2

x 9 x

10-5/8"

deep

WEIGHT:

........

Net-27

1/2

lb., Shipping-32 lb.

FREQUENCY COVERAGE

Calibrated

Band Frequency Range Band Spread

1 .538 -1.6

MC

-

2 1.55 -4.6

MC

80M

3 4.6 -13.0

MC

40M

4 12.0 -34.0

MC

20, 15, and

11-10M

5-2.

TUBE

and

DIAL LAMP REPLACEMENT

To

gain

access

to

the

tubes

and

dial

lamps,

raise

the

hinged

top

cover

of

the

cabinet.

The tube

locations,

as

well

as

their

functions,

are

shown in

Fig.

5.

NOTE

MAIN TUNING 8 BANDSPREAD

GANGS

FULLY CLOSED.

DATA

5-3.

CHASSIS

REMOVAL

The

chassis

and

front

panel

assembly

are

remov-

able

from

the

cabinet

as

a

unit

by

removing

the

two

screws

at

each

side

of

the

front

panel

and

the

six

screws

on

the

underside

of

the

cabinet.

When

removing

the

chassis

from

the

cabinet,

care

should

be

taken

not

to

damage

the

brass

adjusting

screws

on

the

oscillator

slugs

(L-7-

8-

9:"

10).

Refer

to

Figure

6

for

location.

'5-4. DIAL CORD RESTRINGING

To

restring

the

tuning

or

bandspread

dials,

first

remove

the

front

panel

from

the

cabinet

by

removing

the

control

knobs,

the

toggle

switch

and

Phones

jack

mounting nuts,

the

two

screws

at

each

side

of

the

front

panel,

and the

three

screws

on

the

underside

of

the

front

panel.

Then

remove

the

tuning

dials

to

gain

access

to

the

drive

pulleys.

For

stringing

details,

refer

to

Fig.

7. Note

that

stringing

is

done with the tuning and

band-

spread

gangs

fully

meshed.

After

stringing

is

com..;

pleted,

cut

off

the

excess

dial

cord

and apply a

drop

of

quick

drying

cement

to

the

knots.

With

the

tuning and

bandspread

gangs

fully

meshed,

replace

the

dials

so

that

the

index

marks

at

the

low

frequency

end of

the

dial

are

in

line

with

the

hairline

on

the

dial

window.

1

1 I

r - - - - - -

-1-

- -

-I

- - - - -

...,

I I

1 1

L

________________

~

Fig. 7. Dial

Cord

Sfringing

Diagram

092-302339-8

- 8 -

SERVICE

PARTS

LIST

Schematic

Hallicralters

SchemaUc

Hallicrafters

Schematic

Hallicrafters

Symbol

Description

Part

Number

Symbol

DescrlpUon

Part

Number

Symbol

Description

Part

Number

CAPACITORS -RESISTORS

(CON'T)

TUBES

AND

LAMPS

(CO"~T)

C-l,12

4-80

mmf,

mica

trimmer

044-100395

R-30,68

10

ohms,

20%,

1/2

watt 451-253100 V-7 6H6,

detector,

ANL,

C-2,13

3-30

mmf,

mica

trimmer

044-100396

R-32

1.

5K

ohms,

10%,

10

watts

and

AVC

090-900847

C-3,14

1.

5-15

mml,

mica

ww

453-062152

V-a

5Y3GT,

rectifier

090-901111

trimmer

044-200147

R-33

15

megohms,

20%,

1/2

LM-l,2

lamp,

dial;

type

44 039-100003

C-4.15,

2-20

mmf,

mica

trimmer

044-100191 watt 451-253156

22

R-34 10K

ohms,

20%,

1/2

watt 451-253103

C-5

Variable

capacitor,

3

R-35

27

ohms

451-252270

sections:

bandspread tuning

R-62

560K

ohms

451~252564

(includes pulley) 048-300342

R-63

6. 8

ohms,

10%,

1 watt 451-352068

C-7

Variable capacitor, 3

R-64

330

ohms

451-252331 MISCELLANEOUS

section

main tuning

R-67

330K

ohms

451-252334

(includes pulley) 048-300341

C-8.32,

O.

05

mId"

200V.,

•All

resistors

10%,

1/2

watt,

carbon

type

unless

other-

35,

58,60

molded

paper

499-012503

wise

specified.

C-9,28

O.

05

mId.,

600V.,

molded

paper

499-032503

"'*Some

units have a

12K

ohm, 4 watt,

ww

resistor

re-

Cabinet,

front

panel

C-10

22

mm!.,

500V.,

cer.

491-107220-95

placing

R-l0,

69

..........

024-101062. (Mark

lB

Only) 068-500612

C-11

2.

2

mml.,

500V., CabiI\et

bottom

section

066-401074

bakelite

047-100160-04 Cabinet

top

cover

066-401073

C-16

390

mm!.,

10%,

500V.;

"'COILS

AND

TRANSFORMERS Cabinet

Iront

panel

mica

470-213391 (Mark

lA

Only) 068-500336

C-17,53

O.

01

mId.,

600V., Clip,

mtg.;

lor

T-1, T-2,

molded

paper

499-032103 and

T-3

076-100385

C-18

150

mml.,

5%

500V. ; Coil, antenna Clip,

tubular;

for

mtg.

mica

470-222151

L-l,

C-l

Band 4 051-201907 medallion 076-100637

C-19

4-70

mmf.,

mica

L-2,

C-2

Band 3 051-201908 Dial

cord

(specify

trimmer

044-100149

L-3,

C-3

Bands

1

and

2 051-20190Q length) 038-100026

C-20,21

2-30

mml.,

mica Dial,

bandspread

083-400561

trimmer

044-10C148 Coil,

mixer

Dial,

tuning

083-400560

C-23 3300

mml.,

5%

50DV.;

L-4,C-12

Band 4 051-201905 Foot, mounting

mica

470-422332

L-5,

C-13 Band 3 051-201906

rubber

016-100007

C-24 1500

mmf.,

2%

500V. ;

L-6,

C-14

Bands

1 and 2 051-201904 Gasket,

rubber

016-200929

mica

470-421152 Grommet, rubber

C-25 320- 520

mmf.,

mica

Coil,

oscillator

tuning gang

front

mtg. 016-100034

padder

044-100394

L-7,

C-19

Band 4 051-201900 tuning gang

rear

mtg. 016-100014

C-27

30-10-10

mfd. @450V.,

L-8,

C-20

Band 3 051-201899

speaker

mtg. 016-100128

electrolytic

045-100062

L-~,

C-21

Band 2 051-201898

"h"

medallion

007-100588

C-29.33

220

mmf.,

10%,

500V.;

L-l0,

C-22

Band

1 051-201897 Knob, Band

Selector

and

mica

470-213221

Pwr.

Off-Tone

015-200791

C-31,43

O.

02

mId, 200V.,

L-fl

Coil, BFO 054-200051 Knob,

Pitch

Control

015-200788

molded

paper

499-012203

T-l,2

Transformer,

1st

and Knob,

Sensitivity

and

C-38

2

mmf.,

wire

gimmick

----------

2nd

IF

050-300243 Volume 015-200322

C-39

O.

1 mfd, 600V.,

T-3

Transformer,

IF; Knob,

Tuning

and

molded

paper

499-032104

detector

stage

050-300242

Bandspread

015-200802

C-41,42

47

mmf.,

20%,

500V.;

T-4

Transformer,

audio Lock,

line

cord

mica

470-214470 output 055-200093

male

section

076-100397-01

C-44,45

270

mm!.,

10%,

500V.;

T-5

Transformer,

power

female

section

076-100397-02

mica

470-213271

for

Model

S-

85 052-100209 Plate, indicator; for

C-45,48,

O.

02

mfd.,

600V.:

for

Model S-85U 052-000350

Noise

Limiter

52,63

molded

paper

499-032203

switch

063-101182

C-47

O.

0022

mfd.,

20%,

1000

V.

"'Coils

L-l

thru

L-IG

are

supplied

complete

with

Pulley,

1-1/8"

string

molded

paper

499-042222

trimmer

capacitor.

Trimmers

are

also

available dia. 028-100200

C-54 470

mml.,

5%

500V. ;

separately.

See

"Capacitors", Retaining ring, 11

E"

mica

470-212471 type 076-100611

C-56

O.

01

mfd.

600V.,

molded

Snap-in

trimount

005-100006

tubular

499-034103 SWITCHES

Spacer.

bakelite;

.

156"

C-57

O.

001

mId.

20%,

500V.; id,

1/2"

od,

1/4'·th.

008-100723

mica

470-314102

LS-l

Speaker,

5-inch

PM;

C-61

O.

25

mId. 200V.,

S-IA

antenna

stage

060-200389

3.

2 ohm

voice

coil 085-200050

molded

paper

499-012254

S-IB

mixer

stage

062-200039 Spring, dial cord tension 075-100163

C-64 10 mId. 25V.,

electrolytic

045-100121

S-IC

oscillator

stage

062-200044

TS-l

Terminal strip, antenna 088-100032

S-2,3,5

Switch,

spst

toggle; Tuning

slug

for antenna,

6 Standby-Rec.

mixer,

and

oscillator

077-100068

'RESISTORS

Noise

Limiter,

AVC,

and

coils

AM-CW 060-100138 Washer, spring type;

8-4

Switch,

rotary;

Pwr

Off- . 27" id,

.495"

od

004-100043

R-l,61

1 megohm,

20%,

1/2

watt 451-253105

Tone

060-100225

Washer,

spring

type;

3/16"

id,

3/8"

od

004-101557

R-2

120

ohms

451-252121 Detent

and

shaft

for

Band

Window,

bandspread

dial

H-3 10K

ohms,

Variable

Selector

Switch 060-200392 (Mark

lA

Only) 022-200432

(Sensithity)

025-200590 Window, tuning

dial

H-4,31

22

ohms,

20%,

1/2

watt

451-253220 (Mark

lA

Only) 022-200427

R-5

39K

ohms,

10%, 1

watt

451-352393 JACKS, PLUGS, AND SOCKETS Window,

bandspread

dial

R-6,26

6.

8K

ohms, 1

watt

451-352682 (Mark

lB

Only) 022-200565

R-7,28

22K

ohms

451-252228 Window, tuning

dial

R-8

10K

ohms,

10%, 2

watts

451-552103

J-l

Jack,

Phones

036-100002 (Mark 1B Only) 022-200562

H-9,11

470

ohms

451-252471

PL-1

Line

cord

and

plug

087-100078

••

H-l0,

69 24K

ohms,

5%,

2

watts

451-551243 Sncket,

dial

lamp

(with

R-ll,18,

lKohm

451-252102

lead)

086-100109

65 Socket, tube;

octal

006-100250

R-12

2.

2

megohms,

20%,

1/2

watt 451-253225

R-14

47K

ohms,

20%,

1/2

watt

451-253473 TUBES

AND

DIAL LAMPS

R-15,29,

lOOK

ohms,

20%,

1/2

watt 451-253104

58

R-20

500K

ohms,

Variable

(Volume) 025-100534

V-I

6SG7;

RF

amplifier

090-901181

R-21 150

ohms,

20%,

1/2

watt 451-253151

V-2

6SA7;

converter

090-901180

R-22,60

270K

ohms

451-252274

V-3,4

6SK7; 1

st

and

2nd

IF

R-23 470K

ohms,

20%,

1/2

watt 451-253474

amplifiers

090-901233

R-24

270

ohms,

10%, 1 watt 451-352271

V-5

6SC7;

BFO

and

audio

R-25

15K

ohms,

20%,

1 watt 451-353153

amplifier

090-900874

R-27,66

47K

ohms,

10%, 1

watt

451-352473

V-6

6K6GT; audio output 090-900856

9

....

o

CONTROL

SENSITIVITY

Ave

eW/AM

NOISE

LIMITER

STANDBY/RECEiVE

* AMI

CW

SWITCH

IN

CW

POSITION.

SETTING

fULL

CLOCKWISE

ON

AM

OFF

RECEIVE

NOIES-

I.

SOCKET

VIEWS

ARE

BOTTOM

VIEWS.

2..

ALL

VOLTAGES

ARE

MEASURED

BETWEEN

TUBE

SOCKET

TERMINALS

AND

CHAssis

WITH

ZERO

SIGNAL

INPUT.

3. LINE

VOLTAGE

117

V,

60

CYCLES AC.

4.

ALL

VOLTAGES

ARE

DC

UNLESS OTHERWISE SPECIFIED.

5.

DC

VOLTAGES

SHOWN

WERE

MEASURED

WITH

A

VACUUM

TUBE VOLTMETER.

6. "NC"-NO

CONNECTION

(VOLTAGE

SHOWN

FOR

THIS TERMINAL

ONLY

WHEN

TERMINAL IS

USED

AS A TIE

LUG)

!

"NR"-NOT

READABLE

(READING

GENERALLY

MEANINGLESS)

S.

c::::J

SPACE

PROVIDED

FOR

SERVICE

METER

READINGS.

FRONT

APRON

BOTTOM VIEW

OF

CHASSIS

Fig. 8. Voltage

Chart

o VOLTAGE

VARIES

WITH SETTING

OF

TUNING

GANG.

92E1097-0

NOTES

-

11

-

SIA

(fRONT)

VIEWED

FROM

REAR

o

1000

C

I

RF

AMP.

VI

6SG7 R4

I

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RESISTOR VALUES

ARE

IN

OHMS UNLESS OTHERWISE SPECIFIED.

2.

CAPACITOR VALUES

ARE

IN

MMF.

UNLESS OTHERWISE

SPECifiED.

3.

RESISTOR RATINGS

ARE

1/2

WATT UNLESS OTHERWISE SPECifiED.

4. BAND SELECTOR SWITCH S-I

SHOWN

IN BAND 4 POSITION.

FOR

LOCATION

Of

SWITCH

SECTIONS,

SEE

fiG.

6.

'"

VALUES

AND

TOLERANCES

SHOWN

ARE

NOMINAL

AND

VARIATIONS

MAY

BE

FOUND.

IT

IS

RECOMMENDED

THAT

THE

VALUE

OF

ANY

REPLACEMENT

CORRESPOND

TO

THE NOMINAL VALUE

OF

THE PART BEING REPLACED.

SOME

UNITS

WILL

HAVE A

12,000

OHM, 4

WATT,

WW

RESISTOR

REPLACING

R-IO

a

R-69.

LAST R

SYMBOL

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S4B

SHOWN

IN

POSITION!.

SWITCH

IS

CLOSED

IN

POSITIONS

2,3

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REPRESENTS

COILS

LI

TO

LIO

24.000

2.

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AUDIO OUTPUT

V6

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B.F.O.

V5

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7 7

V7

VI.2.3.

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°55

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089-400615-0

MODELS S-85 & S-85U

MARK

fA

&

18

Warrant!'

"The

Hallicrafter's Company warrants each new radio product manu-

factured by

it

to

be

free

from

deJective material

and

workmanship

and

agrees to remedy

any

such deject

or

to

Jurnish a new

part

in exchange

Jor

any

part

oj

any

unit

oj

its manuJacture which under normal instal-

lation, use

and

service discloses such deject, provided the unit is delifJered

by the owner

to

our authorized radio dealer, wholesaler, Jrom whom

purchased, or, authorized service center, intact, Jor examination, with all

transportation charges prepaid within ninety days from the date

oj

sale

to

original purchaser

and

provided that such examination discloses

i:l

our

jvdgment

that it

is

thus deJective.

This warranty does not extend to

any

oj

our radio products which have

been subjected

to

misuse, neglect, accident, incorrect wiring not our own,

improper installation, or

to

use in violation

oj

instructions furnished by

us, nor extend

to

units which have been repaired

or

altered outside

oj

our

Jactory

or

authorized service center, nor

to

cases where the serial number

thereoJ has been removed, deJaced

or

changed, nor

to

accessories used

therewith not

oj

our own manuJacture.

Any

part

oj

a unit approved Jor remedy

or

exchange hereunder will

be

remedied

or

excha

ng

ed

by

the authorized radio dealer

or

wholesaler

without charge

to

the owner.

This warranty

is

in lieu

of

all other warranties expressed

or

implied

and

no representative or person

is

authorized to assume

for

us

any

other

liability

in

connection with the sale

oj

our radio products."

form

No. 94X622

Hallicrafters S-85 User guide

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