Philco 37-620 User manual

• • • • • • • • • • • • • ?rlodlll37-620
FOR MEMBERSOF
RADIO MANUFACTURERSSERVICE SERVICEBULLETIN
No. 150
General Description
Model 37-620 is a 6 tube superheterodyne receiver for operation
on altern ating current , having three tuning ranges , covering
stand ard broadcast and short-wave frequencies, and using the new
Philco High-Efficiency self-centering glass tubes .
The circuit includes the Philco "Foreign Tuning Syst em"-
controlled by the tuning range switch - which provides maximum
sensitivity and noise reduction, when used with the Philco High
Efficiency Aerial supplied with the receiver . One stage of Radio
Frequency amplification which greatly increases the signal-to-
noise ratio, automatic bass compensation in the volume control
circuit , and a separate diode circuit for automatic volume con-
trol are also incorporated in this receiver.
The red and black leads of the High -Efficiency Aerial "trans-
mission line" are connected to terminals 1 and 2 respectively, of
the terminal panel provided at the rear of the chassis. Connect
the jumper on the terminal panel across terminals 3 and 4.
If a tempor ary aerial is used , the jumper should be across ter-
minals 2 and 3. The aerial connects to terminal 1 and the ground
to terminal 3.
A good ground connection is desirable in all installations .
Make the ground connection from the nearest water or radiator
pipe to termin al 3 on the terminal panel.
CONSTRUCTION
all coils; and other parts necessary for the associated circuits ,
The unit is separately mounted on rubber grommets, cushioning
it from the main chassis .
(2) The Intermediate Frequency unit, mounted on the right
hand side of the chassis (facing front of set) consists of the Inter -
mediate Frequency transformers, compensating condensers, a
6K7G tube for the I. F. Amplifier stage, and a 6Q7G tube as the
second detector - automatic volume control and first audio stage.
All voltages supplied to the I. F . and R. F. units are furnished
from a terminal strip mounted on this unit.
(3) The Power Pack and Audio Output circ uits, together with
the required voltage dividers and filter condensers are mounted
in the power unit. This unit contains a 6F6G tube and a 5Y4G
tube for the Power output and rectifier circuits respectively; and
the combined tone control and power switch. The socket for the
5Y4G tube is mounted on the power transforme r.
Schematic Diagram Fig . 5 is numbered , indicating all im-
portant parts . These numbers correspond with the parts layout
shown in Fig. 6. In addition , the range switch wafers are shown
on the schematic diagram. The contacts on each wafer are lettered
and numbered to indicate their connection points in the schematic
diagram, which are also lettered and numbered. The physical
drawings of each coil used in the receiver are also shown on sche-
matic diagram Fig. 5. The connections of these coils are numbered
on the coil Drawing and on the schematic diagram .
The chassis is constructed in three basic assembly units, con-
centrating each circuit in a single unit .
(1) The Radio Frequen cy unit , located in the center of the
chassis, contains a 6K7G tube which functions as a Radio Fre-
quency Amplifier; a 6A8G tube, for the Det€ctor -Oscillator cir-
cuit ; individual Antenn a, R. F. Amplifier and Oscillator coils for
each tuning range; selector switch ; compensating condensers for
Fig. 1 shows the Voltage measurements taken from the bottom
of the sockets at each contact . In Fig . 2, the correct position of
the dial indicator, for proper adjustment of the compensator
·condenser is shown. Fig.•3 and 4 are the locations of the I. F . and
R. F . compensators respectively .
This receiver is used in cabinets type B and J. These instruc-
tions, however, will cover both types . ·
Electrical Specifications
Voltage Rating : 115 Volts AC.
Frequency Rating: 50 to 60 cycles.
For 25 to 40 cycle operation , the Power Transformer marked
with asterisk in the parts list is used.
Power Consumption : 65 Watts
Types and Number of Tubes: 2 type 6K7G, R. F. and I. F .
Amplifiers ; 1 type 6A8G, Detector-Oscillator; 1 type 6Q7G,
2nd Detector , Automatic Volume Control and 1st Audio ; 1
type 6F6G, Output; and 1 type 5Y4G Rectifier.
Undist orted Output: 3 watts.
Inte rmediate Frequency: 470 K. C.
Tun ing Ranges: Three, Range 1.-530 to 1720 Kilocycles; Range
2.- 2.3 to 7.4 Megacycles ; Range 3.- 7.35 to 22 Megacycles .
Speakers: B Cabinet - S-7.
J Cab inet - HS. -,c=C:.R=E=E=N==;,ca:==:3;:;:,...,-----_
340<~
® POWER TRANSFORMER DATA
J ••
"U"&N'IJJ.,"'lrut"•
r RE.CTlrlER I
I (i ) I
!____________________________l
70'l Z51JV.
bo.OtT. · ln.AUOIO
..J?9.li.._
Fig . I- Socket Voltages
Measured from Socket Contact to Ground
Underside of Chassis View
The voltages indicated by arrows were meas ured with a
Philco 025 Circuit Tester wh ich co nt ains a voltm eter
having a resistance of 1000 ohms per volt. Volume Control
at minimum . Rang e Swit ch in broadcast position . Line
volta ge 115 A. C.
Lead No.
Shown A.C. Current
on Sche- Volts
matlc
-- -- --- - ---
1-2 120 -
---- ---
3- 4 5 .0 2.0 A.
---- - -- - -- -
5- 7 670 70 Ma .
-- -- --- - -- -
6 --
-- - - -- -
8- 9 6 . 7 2.1 A.
Run 2.
Circuit
-- - -
Pri.
Fil.
Rectifier
--- - -
High
Voltage
Sec.
Center
T ap of
5- 7
Fil.
Color
---
Whit e
Blue
Yellow
-
Black
Resist-
ance
- - ---
5 oh ms
.1 ohm
145 ohm s
155 ohm s
-----
-
.1 ohm Speake r Wiring
Wh en replacing an y part of th e
spea ker, th e hum bucking coil
conn ections should be connected
for minimum hum.
Whil e the circuit arrangement remain s the same, the po~ition of the parts is slightly chang ed in
thi s Run . Ba kelite conden ser O Part No. 3793-DG is rem ove d from front and place d in the rear of
th e chassis . Tubul ar cond enser O Part No. 30-4380 is rep laced wit h a Part No. 8318-SU bak elite
condenser, pla ced in th e position formerly held by 379 3-DG .
Copyright 1936, Philco Radio & Televisi on Corporati on
philcoradio.com

PageZ PHILCO Service Bulletb1 No. ZSO
Fljl. 2-Dlal Calibration FIii,. 3-Locatlons of I. F. Compensators FIii,. 3-Locatlona of R. F.
Compensator ■
Adjustment of Compensators
The accurate adjustment of the various compensating con-
densers is .vital to the proper functioning of this receiver. There
are four compensating condensers in the I. F. Circuit , four in the
Oscillator Circuit, three in the R. F. Amplifier Circuit and three
in the Antenna Circuit. Incorrect adjustment will cause loss of
sensitivity, unsatisfactory tone, and poor selectivity.
To accurately adjust this receiver, precision test equipment is
necessary. A signal generator such as the PHILCO MODEL 088
SIGNAL GENERATOR, covering from 110 to 20,000 K. C. is
recommended for adjusting the compensators at the various fre-
quencies specified . A visual indication of the receiver output is
also·necessary to obtain correct adjustment of the compensators .
PHILCO MODEL 025 CIRCUIT TESTER contains a sensitive
output meter and is recommended for these adjustments.
Philco Fibre Handle Screw-driver No, 27-7059 completes the
necessary equipment for these adjustments . The locations of the
various compensators are shown in Figs. 3 and 4.
The following procedure must be observed in adjusting the
compensators:-
DIAL CALIBRATION - In order to adjust this receiver cor-
rectly, the dial must be aligned to track properly with the tuning
condenser. To, do this, rotate the tuning condenser control to the
extreme counter-clockwise position (maximum capacity). Loosen
the screw of dial hub, then turn dial until the glowing indicator is
centered on the first index line of dial scale (see Fig. 2). Now
tighten the dial hub set screw in this position.
OUTPUT METER-The 025 Output Meter is connected to
the plate and cathode terminals of the (6F6G) tube. Adjust the
meter to use the (0-30) Volt Scale.
During the ·!. F. and R. F. adjustments , the signal generator
output should be maintained at the lowest poS&iblelevel that will
give indication on the output meter.
INTERMEDIATE FREQUENCY CIRCUIT
Frequency 470 K. C.
1 Connect the 088 Signal Generator output lead, through a .1
mfd . condenser, to the control grid of the 6A8G tube; and the
ground connection of the output lead to the chassis.
2 Set the range switch in position No. 1 (Broadcast), then rotate
the tuning condenser of the receiver to the maximum capacity
position (counter-clockwise), and adjw,t the signal generator
for 470 K. C.
3 Adjust compensators @a 2nd I. F. Sec., @ 2nd I. F. Pri ., @a
1st I. F. Sec., and @ 1st I. F. Pri. for maximum reading on out-
put meter. RADIO FREQUENCY CIRCUIT
Tuning Range - 7.3 to 22.0 M. C.
1 Remove the signal generator output lead from the grid of 6A8G
tube, and connect it through a .1 mfd. condenser to terminal
No. 1 on aerial input panel, and the generator ground lea<l to
terminal No . 3, rear of chassis .
(a) Terminals 2 and 3 of aerial input panel must be connected
with connector link provided on the panel, during these
adjustments .
2 Set the tuning range switch in position No. 3 (Short Wave) .
Turn the signal generator and receiver dials to 18. M. C. and
adjust compensators @b Osc., @b R . F . and © b Ant. for
maximum output. (See Note (a) below).
(a) The adjustment of .the Radio Frequency compensator on
the high frequency range causes a slight detuning of the
oscillator circuit . In order to overcome this detuning effect,
connect a variable condenser of approxim:itely 350 mmfd.,
having a good vernier drive, across the oscillator section of
the tuning condenser. Leaving the signal generator and re-
ceiver dials at 18 M . C., tune the added condenser so that
the second harmonic of the receiver oscillator will beat
against the signal from the 088 signal generator bringing in
the signal. The antenna and R. F . compensator ©b and @b
should then be adjusted to give maximum output. Now re-
move the external condenser and turn compensator @b to
maximum capacity (clockwise) then without moving signal
generator or receiver tuning condenser, back off compen-
sator @b (counter-clockwise) until a second peak is reached
on the output meter. The first peak is caused by tuning to
the image frequency signal and must not be used.
Tuning Range 2.3 to 7.4 M. C.
1 Tum the range switch to position No . 2 (police) . Rotate the
signal generator and receiver dials to 7.0 M. C. Then adjust
compensator @a for maximum output . Now tum the signal
generator and receiver dials to 6.0 M. C. and adjust compen-
sators@a R. F. and © a Ant. for maximum reading on the out-
put meter.
Tuning Range 530 to 1720 K. C.
1 Set the range switch in position No. 1 (Broadcast). Set the 088
Signal Generator indicator at 800 K. C. and the receiver dial
at 1600 K. C.
(a) In adjusting the receiver at 1600 K. C. the second harmonic
cl 800 K. C., to which the signal generator is tuned , is used.
The second harmonic of 800 K. C. is 1600 K. C. Now adjust
compensators @ Osc., ® R. F. and © Ant. for maximum
reading on output meter.
2 The low frequency end of the range is now tuned by turning
the signal generator and receiver dials to 600 K. C. and adjust-
ing compensator ® Osc. Series- (see Note (a) below)-for
maximum reading on output meter .
(a) While compensator @ is being adjusted, the tuning con-
denser must be rolled for maximum output. This is accom-
plished as follows: - First tune compensator ® for maxi-
mum output. Then vary the tuning condenser for maximum
output at 600 K. C. Now·retune compensator ·®, and again
vary the tuning condenser back and forth at 600 K. C. for
maximum output. This operation of first turning the com-
pensator then the tuning condenser is continued until maxi-
mum output is obtained at the 600 K. C. frequency.
3 After the low frequency (600 K. C.) end of the range is adjusted,
the 1600 K. C. end is readjusted, as given in Paragraph (1)
above, to correct any variation that the low frequency series
compensator may have caused in the alignment of the high
frequency end .
4 Now tum the si.gnal generator and receiver dials to 1500 K. C.
and readjust compensators © ant ., and ® R. F ., for maximum
output.
philcoradio.com

Page 3
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Fig. 5-Schematic Diagram
Model 37-620
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philcoradio.com

Page4 PHILCO Parts and Service Division No. ZSO
PHILCO
MODEL 025
CIRCUITTESTER
•
The Most Compact
Self-Contained Complete
Radio Circuit end Value
Testing Instrument
Fig. 6-Base View
Replacement Parts-Model 37-620
Schem . Part
No. Deecrlptlon No.
1 Antenna Transformer (Broadcut) .....•. ... ... •.. •.. ...... 32-2108
2 Antenna Transformer (Police).. . .... . ................ 32-2119
3 Antenna Transformer (S. W.).. ......... . ...... . .......... 32-2109
4 Compensal<,rAnt. 1600K.C....... .. ....... ....... ....... 31-6092
5 Condenser(.05mfd. Tubular).. .. .. .. .. .. .•.. .. .. .. .. .. .. . 30-4020
8 Reaiator(51000ohma½ watt).... ..... •• .. .. .. •. .•.. .. .. .. 33-351339
7 Tuning Condenser.................... .. ................. 31-1818
8 Compensator(R. F. 1500K.C.)........... ... ... .......... 31-6092
9 R. F. Transformer (Broadcaal)... .. .. .. .. .. . . .. .•. . .. .. .. . 32-210.S
10 R. F. Transformer (Police)........... ,....... ............. 3:i:,2100
11 Condenser (1.0 mmfd.)................. ... ............... .
12 Condenser(14mmfd. Mica)........ ...... ...... ... ........ 30-1073
13 R. F. Tranaformer (S. W.)............ ...... .............. 32-2126
14 Condenser(.05 mfd. Tubular) ........ .. ................... 30-4123
15 Condenser(.O.Smfd. Tubular) ............ .. ............... 30-4020
18 Reaiator(61000ohma I watt) ........ .. . ................... 33-351439
17 Reaiator(20000ohma I watt) ........... .. .... . ....... .. ... 33-320439
18 Electrolytic Condenser(16 mfd.).. ........... .. .. .. . . .... . . 30-2118
19 Reaiator(10000ohma½wall) .. ............... .. .... .... .. 33-310339
20 Condenser(.1mfd. Tubular)... . .. ........................ 30-4170
21 Compensator(O.C.Seriea600K.C.) ........ ................ 31-6056
22 O.C.Tranaformer(Broadcast).. .............. ... .. .. ...... 32-2120
23 Compell8&tor(O.C. 1600K.C.)........... ... . ........ , .... 31-6092
24 O.c. Transformer(Police)....... .. .. .. .. ..•. .. .. .. .. .. .. .. 32-2121
25 Condenser(1660mmfd. Semi,fixed). .... ... .• . .. .. ..• . ,.... 31-6096
28 O.C. Transformer (S.W.)......... .... ...... .... ........... 32-2110
27 Condenser(250mmfd. Mica)........ ........ .. ............ 30-1032
28 Condenser(3500mmfd. Semi-fixed)........ . .•.... ,....... . 31-6097
29 Reaistor(70000ohms ½ watt) .. . .. .. .. .. •.. . .. .. .. .. .. .. . 33-370339
30 Reaistor(32000ohms ½ watt). ... . ... . .. .. .. .. .. .. .•.. .. . . 33-332339
31 Compell8&tor(1st I. F.Pri.470K.C.)..... ...... ........... Part of 39
32 lat I. F. Transformer........ .... .................... .. .. . 32-2100
33 Reaiator(1000ohms½ watt) ................ .. ........ .. .. 33-210339
34 Reaistor(400ohm Bakelite)................. .. ............ 33-1211
35 Condenser(.05 mfd. Tubular) .......... . .. , .• .. ..• , .•..... 30-4020
38 2nd I. F. Transformer............... ..... . ........ .... ... 32-2102
37 Compell8&tor(2nd I. F. Pri. 470K.C.)..................... Part of 42
38 Condenser(110mmfd. Mica).. .... ........ ........ ........ 30-1031
39 Reaistor(51000ohms½ watt) ...... ... .... .... .. .......... 33-351339
40 Condenser(.01 mfd. Tubular) ..................... ........ 30-4124
41 Resistor (490000ohms ½ watt) .... .. .. . .. .. •. .• .. .. .. .. .. . 33-449339
42 Condenser(110 mmfd. Mica).............. .... ............ 30-1031
43 Conderu.er (110mmfd. Mica) ... . .. ... ... .... .. ..... . , .... 30-1031
44 Resistor (I megohm½watt) .. ............. .... ...... , . ... 33-510339
45 CondeDBer(.015mfd. Tubular) .... .. .. •• .• ... . .. 30-4358
48 Resistor (51000ohms, ½watt) ...... ... .... .... .. ......... 33-351339
47 Condenser (.006 mfd. Tubular) ................. .... ....... 30-4112
48 Conden•er(.015mfd. Tubulor)......... , .... ... , .. ........ 30-4226
49 VolumeControl. .. ............ .... ........ .............. 33-5158
80 Reaistor(I megohm½ watt) ................. .. ........... 33-510339
51 VoiceCoiland Cone:S7Speaker............. ...... .. .. .... 3f>-3014
VoiceCoil & Cone. HS Speaker.. .. .. .. .. .. .. .. .. .. .. .. .. .. 3f>-3627
52 Output Transformer. S7 & HS Speaker.... .. •. ., .. . . ., ..... 32-7019
53 Rea,stor(I megohm½ watt) ...... . ..................... 33-510339
54 Condenser(0.1 mfd. Tubular) ............... ._, ...... .... . 30-4122
55 Reaistor(490000ohms ½watt) .. ... .. ............ .. ....... 33-449339
:; Condenser(.008mfd. Tubular).... ...... .. ...... ... , ...... 30-4112
58 Condenaer(.03 mfd. Tubular) ... ... .... .... ............. . 30-4380
Reaistor(I megohm½watt) .... ......................... 33-510339
59 Tone Controland A:C.Switch. 42-1182
80 Electrolytic Condenser(8 mfd.) ..... , .. .. •. ., .. . 30-2024
81 BiMResistor. .. .. . .. .. .. .. .. .. .. .. . . . . .. . . .. .. .• .. .. .. . 33-3277
82 Electrolytic Condenser(12 mfd.)................ . ......... : 30-2117
63 Field Coil Assembly. S7 Speaker.. . ,.. .. .. .. . 3f>-3039
Field Coil ABBem. HS Speaker. .. . .. .. .. .. .. .. .. .. .. .. .. .. 3f>-3690
• 26-40cycleoperation.
FlgureaIn black type Indicate circled llgur11In 8111 View.
June, 1936
Price
List
so.so
.66
.75
.60
.20
.20
4.50
.60
.75
.66
.20
.55
.20
.20
.20
.20
1.65
.20
.25
.55
.66
.60
.40
.40
.75
.25
.50
.20
.20
1.50
.20
.20
.20
1.50
.20
.20
.25
.20
.20
.20
.20
.20
.20
.20
.20
1.00
.20
.80
.85
.20
.20
.20
.20
.20
.20
.75
1.10
.20
1.20
2.75
Schem. Part
No. Deacrlptlon No.
84 Reaistor(9000ohms, 2 watt) ..... .. .. .. .. .. .. •.. •.. .. .. .. . 33-290539
85 PowerTransformer (115Volt50-60 cycle)..... ... •...... ... 32-7583
• Power Transformer (115V;25-40cycle).... ....... .. .. ...... 3S-7584
88 Pilot Lamp. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 34-2039
87 Condenser(.015-.015mfd. DoubleBakelite)...... , .• .. . . .. . . 3793DG
88 WaveSwitch Antenna.................................... 42-1170
89 Wave Switch R. F.... .................................... 42-1171
70 WaveSwitch Osc.... .. ....................... .. ........... 42-1172
Wave SwitchIndexingPlate & Shaft .... ................... 42-1173
Pilot.Lamp Assembly... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 3S-7706
Dial.... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. •.. •.. .. .. •.. . .. 27-5203
Dial Hub.. .................... .. ........ ... ........ ... . 2S-7187
~i:l~~bti·&"r~;.::.·.·::::::::::::::::::::::::::::::::::W:i:i
Dial Gear...... ... ...................... . .. ... ........ .. 2s-7185
DialGuard......... .. .... .... .. .... .................. .. 27-8324
Thrust Spring.... .. .. •. .. .. .. .. .. .. .. .. •. .. .. .. .. ••.. .. . 2s-8611
Thrust Washer..... .. ...... .. ... ........................ 2S-S976
"C" Washer
...... ... .. ........ .. .............. . .. ... .... 2S-S904
Drive Gear........ . .. .. .............. . .................. 31-1884
VernierDrive.... .................. ..... . ............... 31-1871
Mask......... ...... .. ........ .... ...... ................ 27-5198
Mask ArmAssembly..... .. .................... .... ...... 31-1866
Mask Guideon Lamp Bracket Support.......... .. •. ..... . . 2S-7844
Mask WMher.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. •. •. .. .. .. . 27-8318
Dial ScreenABBem.. ........................ ............. 3S-7912
tt~g·.·..··:::::::::::::::::::::::::::::::::::::::::::::;~i~
Volume ControlShaft.... .......... .. ........ .... ........ 2S-6499
VolumeControl Shaft Spring.... ... .. ...... ... ............ 2s-4117
Retaining Clips.. .. .. . .. .. .. .. .. .. .. .• .. .. •. ••.. .. ..•. .. . 28-8610
W&Bhcr.......... .. .......... .... .................. ..... 28-4186
Socket8 prong...... .. ..... ... ... :.. .• .. .. .. .•.•.. .. .. .. 21-6058
~':~e§ii:{J' .ng:·.:::::: :: : :: : : :: : : :: : : :: : : ::::::: : :::: : : : ;t~~~
Tube Shield Base.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 2S-S898
I. F. Shield..................... . ..... .............. .... 3S-7763
Terminal Panel I. F. Unit ............ . ........ . ...... . .. . 3S-7703
W&Bher I. F. Unit ......... .. ...... .. .... .. ........ . . ..... 2s-4001
Wiring Panel.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 3S-6306
WiringPanel PowerUnit .................... .... , ... ..... 3S-5864
Grommet Mtg. Tuning Condenser.. . .. •. .. .. .. .. .. .. .. .. . 27-4325
Grommet R. F. Unit .............. .. .... .. ....... . ...... . 27-4317
SleeveMtg. R. F. Unit ..... .. .... .... .... ..... .. . ........ 28-2257
SpacerMtg. R. F. Unit ............ .... ................ ... 27-8339
ScrewMtg. R. F. Unit............ . .. . . .. ... .. ...... . .... W-729
WMher Mtg. R. F. Unit.. .. ...... .. .. ...... .......... 28-3927
Insulator, Mtg. Elect. Cond....... .. •. .. .. .. .. .. .. .. .. 27-7194
Bracket Mtg. Elect. Cond.. .. .. . .. .. •• .. .. .. .. .. .. .. . . 6440
Antenna Panel. .. .. .. .. .. .. .. .. .. .. .. . . .. .•. . .. .. .. .. . 3S-7714
Speaker Cable...................... .. .. .. ,........... ... L-2181
A. C. Cord....... .. .. .. .. .. .. .. .. .• .. .. .. .. .. .. .. .. L-2183
Speaker S7-B. Cabinet.. . ... .. .. .. .. .•.. .. .. .. 3f>.1009
t:teT~:i~~--~~~~~~t:.·:.::::::~:::::::·:~:::::::::....:tliig
Knobs Tuning Vernier........ ..... . .. .. .. .... .. .......... 27-4331
KnobsWaveSwitch.. .. .. .......... . ................ ..... 27-4326
Knobs Tone & Volume............. .. ........ ...... ..... 27-4332
BezelFrame & Plate ABBembly.. . .. .. .. .. .. .. ••.. .. .. .. . . 40-5939
G&Aket ...... ........ .............. ... , .. .. •. .. .. .. .. .. . 27~8311
GlaSB.. .. . .. .. .. .. .. .. .. . .. .. •.. •.. .. .. •. .. .. .. . 27-8298
Ring... .. .. .. .. .. .. .. .. .. .. .. .. .. .. •. •. .. .. .. . . 2S-3967
ScrewBezelMtg...................... .. ..... , .. .. .. .. .. . W-1644
Nut Mtg. Volume& Tone Control............. . . W-684
ChaSBisMtg. Screw.. . .. .. .. . . .. .. .. .. .. .. .. .. .. .. .. .. W-1358A
ChMBisMtg. Washer...... ... .. .. .. .. .. .. .. .. .. .. .. 28-2089
Price
List
$0.30
4.50
.15
.40
1.10
1.00
1.10
.50
.35
.50
.12
.10
.02
.10
.02
.01
Per C .30
.01
.26
.75
.30
.35
.15
Per C .50
.30
Per C .50
.02
.10
Per C .40
.03
Per C .75
.11
.11
.10
.03
.20
.25
Per C .25
.03
.02
.02
.04
.01
Per C .40
Per C .45
.01
.01
.05
.15
.26
.40
5.75
6.25
.10
.10
.10
.10
.75
.01
.o.s
.35
Per C .50
Per C 1.25
Per C 2.60
Per C .30
Prlcea Subject to Chanae Without Notice Printed in U. S. A.
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