Philco 15 Series Reference manual

PH I LC 0
REC. U.S. PAT. Ol'F .
Service Bulletin~No. 130
Model 15 Series
The Philco Radio of the 15 series is an eleven-tube superheterodyne, employing the high efficiency
6.3-volt filament tubes, automatic volume control, superpower push-pull pentode output, and twin
n n n
electro-dynamic speakers. Philco
shadow tuning and the combina-
tion distance switch and power
switch on the control panel are
additional features. The m-
termediate frequency used in
adjusting the superheterodyne
circuit of the 15 series is 175
kilocycles. The total power
consumption is approximately
115watts.
I I~---==,---------------------'( ~
CG~F4·2
SGWF
379 @42
~ CG SG
37@ 374444443744
G SC SC SG G SG
f]Qfi]t:3~54
Flll.1-Tube Sockets , Under Side of Chassis
80
FF
11\l
~
PP
F Filament BG Screen Grid K Cathode
P Plate CG Contr ol Grid
Caudon : Never connect the chassis to the power supply unl ess the speakers are con-
nected and all tubes are in place.
Table 1-Tube Socket Data*-A. C. Line Voltage 115 Volts
Tube Filament Plate Screen Control Cathode
Grid Grid
Volta Volts Volts Volts Volts
Type Circuit FtoF P to K SG to K CGtoK K toF
44 R. F. 6 .3 165 55 15. 30
44 1st Det . 6 .3 250 90 .85 10
37 Osc. 6 .3 60 ... Hi . 10
44 1st I. F. 6 .3 250 90 .85 10
44 2nd I. F. 6.3 275 90 3 .3 10
37 Det.-Rect. 6 .3 0 ... .2 10
37 1st Audio 6.3 75 ... .4 10
37 2nd Audio 6.3 100 ... .2 10
42 P. P. Output 6 .3 255 270 15 15
42 P. P. Output 6 .3 255 270. 15 15
80 Rectifier 5.0 320/ Plate
I • *All of the above readin gs were taken from the under sideJof the chassis using test prods and leads with a suit able A. C. volt meter for filament
volta ges and a high resistance multi•range D . C. voltmet er for all oth er readings. Volume cont rol at maximum aml ~tat ion selecto r turn ed to low
frequ ency end. Power switeb in middle position.
Table 2-Power Transformer Data.
Ter-
minals
on Fills. 3 A. C. Volta
and 4
1-2
3-5
6-7
8-10
4
9
105 to 125
6 .3
5 .0
720
Circuit
Primary
Filament
Filament of 80
Plates of 80
Center Tap of 3-5
Cente r Tap of 8-10
Fil\. 2-lnternal Connections Filter Condens er-
50-60 Cycles
No.on Power
Fill,s. 3 &4 (Watts )
@ ..
@ .5
@@ .5
CD @ , .5
@ 1.
@ .5
® .5
@ .5
@ .5
@c!)@}
.5
@-@ .5
® .5
(17) .5
@ .5
Table 3-Resistor Data
COLOR
Resistance Ter-
(ohms) mlnals Body Tip Dot
·- -
{ 50 1-2}
50 2-3 Long Tubular
205 3--4
1000 ... . Brown Black Red
·5000 ... . Green Black Red
10,000 .. .. Green Black Orange
13,000 .. .. Brown Orange Orange
25,000 .... Red Green Orange
51,000 ... . Green Brown Orange
99,000 .. .. White White Orange
160,000 .... Brown Blue Yellow
240,000 .... Red Yf'llow Yellow
490,000 ... . Yellow White Yellow
1,000,000 .... Brown Black Green
1,500,000 .... Brown Green Green
2,000,000 .... RPd Black Green
philcoradio.com

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L-- ------- --- - - -- -
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-
A
NQl[, SWITCHCSGANGEDASSHOWN ~
_:;__ - - __________;
Fig. 8-Schematic Wiring Diagram
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®=~1~1 M.!. .
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philcoradio.com

No. 130
'2'!PAUO.O P\J5M·PIJLLOUTPUT
SOCKET ~OCl<ETS
lt!AUOIO
!>OCKE.T OET.RlCT. 1~1.F.
~ SOCKET l~ l.f.
SOCKET
Service Bulletin
Fig. 4-Parts Diagram
Adjustment of Model 15 Series
Page 3
These receivers are accurately adjusted at the factory prior to shipment. Under
normal conditions it will never be necessary to re-adjust the compensating condensers.
If for any reason such ad- cAsu rRoM aET
justment should be re- FRo';,E;,~Z:,~
0,L
quired, it should not be
attempted without first
receiving the proper in-
struction and equipment
from your distributor.
The Philco Model 095
Oscillator has been espe-
cially designed for use in
this work and will be
found the most in expen-
sive and most reliable for
the purpose.
BLACK
FROM FIELD COIL
Fla. 5-Speaker Connecdona
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REPLACEMENT PARTS MODEL 15 SERIES
No.on
Figs. I and 1, Description
© Resistor (10,000 ohms)
® First R. F. Coil
Part No.
4412
04981
® Tuning Condenser Assembly 04941
© Compensat ing Conde nser- First Antenna 04000-E
@ Condenser (.05 mfd.) Double . 3615-AM
@ Condenser (.05 mfd.) 3615-L
0 Second R. F. Coil 04982
® Compens atingCond enser- Second Antenna04000-E
® Resistor (490,000 ohms) 4517
@.) Resistor (160,000 ohms)
@ Condenser (35 mmf.)
@ Conden ser (.09 mfd.)
@ Condenser (.25 mfd.)
@ Pilot Light
@ Detector Transformer .
5331
4990
4989-D
4264
6608
3884-V
@ Compensating Condenser-Detector .
@ Resistor (1,500,000 ohms) •
04000-E
7009
6438
04983
4520
4518
@ Distance Switch and Power Switch
@ Oscillator Coil
@) Condenser (700 mmmf.)
@ Resistor (51,000 ohms)
® Compensating Condenser-Low Fre-
quency 04000-F
@ Compensating Condenser-High Fre-
quency
® Condenser (.09 mfd. and200ohm Resistor)
Condenser (110 mfd.)
@J
@
04000-E
4989-R
4519
3615-J
Condenser (.05 mmf.)
® Compensating Condenser-First
Primary
@ Resistor (2,000,000 ohms) .
@) First I. F. Tran sformer
@) Compensating Condenser-First
Secondary
@ Condenser (.05 mfd.)
@ Resistor (13,000 ohms)
@ f/ilter Condenser (.015, 3-.5, 1. mfd.)
I. F.
04000-J
5872
03038
I. F.
04000-J
3615-J
3766
50-60 cycles 03489
Filt er Condenser (.015, .5, .75, 1., 2-1 mfd.)
25-40 cycles 05302
@ .Second I. F. Tr ansformer .
@ Compensating Condenser-Second
Secondary
@ Resistor (1,000 ohms) .
® Shadow Tuning Meter
@ Third I. F. Tran sformer
@) Compensating Condenser-Third
Secondary
_@ Resistor (99,000 ohms)
@ Conden ser (llO mmf.) .
@ Condenser (110 mmf.) . • •
. 04979
I. F.
04000-J
5837
6497
03345
I. F.04000-J
4411
4519
4519
No.on
Figs. 1 and 2 Description
@ Volume Control
@ Condenser (.01 mfd.)
@ Resistor (5,000 ohms) .
@ Pilot Light (Shadow Tuning) .
@ Resistor (1,000,000 ohms) .
@ Condenser (.25 mfd. Double) .
@ Condenser (.01 mfd.)
@) Resistor (25,000 ohms)
® Resistor (1,000,000 ohms) .
@ Resistor (10,000 ohms)
@ Tone Control
@ Resistor (490,000 ohms)
@ Resistor (5,000 ohms) .
Part No.
7050
3903-AD
5310
6608
4409
3557
3903-T
4516
4409
4412
04787
4517
5310
@ Input Transformer . 5662
@) Condenser (.002 Mfd.) Blue 6853
@) Output Transformer 2565
@) VoiceCoilandConeA ssembly (Large) H-7 02807
@ Field Coil Assembled with Pot (H-7) 02803
@ VoiceCoilandConeAssembly(Sm all)K-12 02823
@) Field Coil Assembled with Pot (K-12) 02803
@ Condenser (.015 mfd. Double) 3793-E
@ Power Transformer (50-60 cycles) 6672
Power Transformer (25-40 cycles) 6673
Power Transformer (50-60cycles,230volts) 6674
@ Cabinet Lamp
@ Resistor (50 ohms, 50 ohms, 205 ohms)
@) Filter Choke
@) Electrolytic Condenser (6 mfd.)
50-60 cycles
Electrolytic Condens er (8 mfd.)
25-40 cycles
@) Condenser (.18 mfd.) 50-60 cycles
@) Electrolytic Condenser (6 Mfd.) .
Electrolytic Condenser (8 Mfd.)
Knob (Large)
Knob (Medium)
Knob (Small)
Knob Spring (Large)
Knob Spring (Small)
Tube Shield .
Grid Clips
Four Prong Socket .
Five Prong Socket
Six Prong Socket
Dial Scale
Bezel.
Pilot Bracket Complete
Cabinet Lamp Socket •
Cabinet Lamp Socket I nsuL1tor
Cone Retaining Ring
6600
6700
3422
4016
6707
4989-K
4916
6709
03063
03064
03437
4147
5262
04962
4897
5026
4956
6417
4276
6433
05016
6584
6605
• 2600
Philco Radio & Television Corporation
Service Department
JULY 19.32
PRINTED IN U. S.A.,
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