Philco 29 User manual

PHILCO
REO.U.S.PAT. or,
Service Bulletin,.... No. 195
Model 29
Philco Model 29 is a super heterodyne receiver operating on alternating current and capable of receiv-
ing either standard and police broadcasts between 540 and 1720 kilocycles,orshort-wav e stations betwee n
4.2 and 13 megacycl es. The left hand side of the dial is calibrated in kilocycles and the right in
megacycles. A two-position switch changes recep tion from standard to short -waves. This model is
equipped with shadow tuning, three point tone control with fixed bass compensation, and automatic
volume contro l. The output is 5 watts.
Model 29 uses a typ e 6-A-7 detecto~-oscillator, two type 39-44 I. F. tub es, type 75 2d detector,
type 42 outp ut tube, and type 80 rectifier. Th e power consumption is 70 watts. The intermediate
frequency is 460 K.C .
Adjusting Compensating Condensers
For adjustment of compensating (padding) condensers in
Model 29, an accurately calibrat ed signal generator and a
special insulated padding wrench and screwdriver are needed.
We suggest the Philco Model 024 Signal Generator or the 048
Tester which includes a similar instr ument . Philco No. 3164
wrench and 27-1159 screwdriver are recommended in addition.
Adjustments are made in the following order:-
ADJUSTMENT OF INTERMED[ATE FREQUENCY-
Remove the grid clip from the type 6-A-7 tube and connect
the "ANT" output terminal on the signal generato r to the
grid cap of the tube. Connect the "GND" termina l of the
signal generator to the "GND" terminal of the receiver chassis.
Connect the output meter to the primary terminals of the
output transformer. Set the signal generator at 460 K.C. (the
interm ediate frequen cy of Model 29) turn wave-band switch
of receiver to left and dial to 600 K.C. Turn receiver and
Signal Generator "ON". Adjust each of the I. F. compen-
sating condensers in turn, to give maximum response in the
output of the receiver. The three pairs of I. F. compensating
condensers are located, one pair at the top of each of the three
I. F. transforn ,er shields. These are the meta l "Cans" near
the rear of chassis. Each of these transfo rmers has a dual
compensating condenser mounted at its top, and accessible
thru a hole in the top of the coil shield. In the dual compen-
Tube Socket Volta~es -(Line Voltage 115)
Del. 1st 2nd 2nd Out- Rectl-
Function Osc. I. F. I. F. Det. put fler
-- -- -- -- --
Type 6A7 39/ 44 39/44 75 42 80
-- -- -- -- --
Filament (F to F) ... .. 6.3 6.3 6.3 6.3 6.3 5.0
-- -- -- -- -- -
Plate (P to K) .. 210 200 200 200 300 310
-- -- -- -- -- - -
Screen (SG to K). .... 80 80 80 315
-- -- -- -- -- --
Cathode (K to GND ).. 4.8 4.8 4.8 0 0 ...
-- -- -- -- --
6-A-7 Grid GI to K . . 35 ... ... .. ...
-- -- -- -- --
0-A-7Grid 02 to K .. 170 ... ... ... ...
sators, the Prim ary circuit is adjusted by turning the screw;
the secondary circuit is adjusted by turning the hex-head nut .
ADJUSTMENT OF WAVE TRAP-Replace the grid clip
upon the Detector-Oscillator tube (Type 6-A-7). Connect the
output leads from the Signal Generator directly to the antenna
and ground terminals of the receiver. Set the wave-band
switch of the receiver to the standard broadcast band (left
hand position ) and the Stat ion Selector at the low frequency
(540 K.C.) end. Adjust the Wave Trap condenser to give
MINIMUM response to a 460 K.C . Signal from signal gen-
erator. The Wave Trap CDis located at rear and underneath
the chassis, and is shown in Figure 4. It is reached from the
rear of the chassis, thru hole at right hand end of set base.
DETECTOR; AND OSCILLATOR- "HIGH" AND
"LOW FREQUENCY" ADJUSTMENTS - The "Antenna"
and "Oscillator H. F." compensators are located on top of the
tuning condenser assembly, reached from above.
Set the signal gener'ator at 1500 K.C ., tune in this signal on
the set, and adjust the antenna compensator 0 (nearest
tuning cont rol), to give maximum reading in the output meter .
Next adjust the oscillator H. F. condenser @, located on
the other section of tuning condenser, to maximum reading .
Finally set the signal generator at 600, tune in this signal and
adjust the oscillator L. F. condenser, located underneath
chassis (@ in Fig. 4) to maximum reading. This adjustment
is reached thru the hole in top of chassis, between the two elec-
trolytic condensers (left-han d end of chassis when facing rear).
Power Transformer Voltages
Terminals A. C. Volts Circuit Color of Leads
1-2 120 Primary Whit,o
3--4 5.0 Fil. of 80 Blue
5--7 746 Plates of 80 Yellow
8-10 6.3 Filaments Black
6 Center of 5--7 Black- Yellow Trac er
9 . .. Cente r of 8-10 Yellow- Green Tracer
Th e above tests were made with an A. C. voltmeter for filament voltage, and a high-resistance D. C. voltmet er for all others. Dial at 550 K.C. , wave-band ,witch
to left, volume contr ol at maximum . Tests made with test prods applied to sockets underneath chassis.
80
RECTIFIER
~
Fig. 1- Tube Socket Layout
39-44
1'1 IF.
Fig.2-Top View
-----t--42 80
,,._;:::::;;:::=;;::=;t-75
philcoradio.com

Fig.3-Dlagrarn
1.F.460K.C.
REPLACEMENT PARTS
MODEL 29
Nos. on
Diagram [Description Part No.
© Wave Trap ............ .. ..... ........... . . ........ 38-5199
@ Reaistor (10,000 ohms) (Brown-Black-Orange) . ........ 33-1000
@ Antenna Transformer ... .......... . . ........... .. ... 32-1360
© Wave-Band Switch... . .......... . ........ . .. .... .. . 42-1062
© Tuning Condenser Assembly .. ... .......... . ......... 031-1192
© Condenser (.1 Mfd. Tubular) ....... . . . . . . . . 30-4122
(D Compensating Condenser (Det.) ..... . . . . . . . . . . . . . . . . . Part of ®
® Reaistor (400ohms Flexible Wire-Wound)....... . .. 33-3016
® Condenser (.1 Mfd. Tubular). . . . . . . . . . . . . . . . . . . . . . . 30-4122
@) Resistor (25,000 ohms) (Red-Green-Orange) ..... , . . 4516
@ Compensating Condenser (Osc. H. F.) ....... .. . . .. . Part of©
@ Oscillator Transformer... .......... . . ... , .... 32-1361
@ Condenser (.0008 Mfd. Mica). . .. . . . . 5878
@ Reaistor (32,000 ohms) (Orange-Red-Orang e). . ....... 3525
@ Compensating Condenser (Osc. L. F.). ... .. . . .. . 04000S
@ Condenser (.003 Mfd. Mica) ... ..... ........ .... , .. . . 7301
@ Compensating Condenser (1st I. F. Primary) Part of@
@ First I. F. Transformer..... .. . .. .. .. .. .. 32-1362
@ Compensating Condenser (1st I. F. Sec.).. . Part of@
@) Reaistor (500 ohms Flexible Wire-Wound) .. . . 6977
@ Condenser (.05 Mfd. Tubular) .. . . . . . . . . . . 30-4123
@ Condenser (.09 Mfd. Twin) (Bakelite Block) . 4989-Z
@ Compensating Condenser (2d I. F. Pri.) .. .. . . . . Part of @
@ 2d I. F. Transformer ......... 32-1363
@ Compensating Condenser (2d I. F. Sec.). .... .. .. . , .... Part of @
~ !~1s::~te~.~-~~".'5~ _<~~--Bl.ack.•Green): : : : : : : : : : : : . ::!~
@ Pilot Lamp (Shadowmeter) .... . . . . . . . . . . . . . . . Part of@
@) Compensating Condenser (3d I. F. Pri.) . .. . . Part of @)
@) 3d I. F. Transformer....... . . . ...... .... . .. .... 32-1364
@ Compensating Condenser (3d I. F. Sec.) ... Part of@)
@ Condenser (.05 Mfd. Tubular) .... ................. ... 30-4123
@ Resistor (1,000 ohms) (Brown-Black-
Red)... .. ..... ... 5837 .25
@ Resistor (50,000 ohms) (Green-Brown-
Orange).. . . 6098
@ Condenser (.0001 Mfd. Mica).. . 30-1031
@ Qondenser (.0001 Mfd. Mica) 30-1031
® Resistor (5,000 ohms) (Green-Black-
Red)...... . 3526
@ Resistor (70,000 ohms) (Violet-Black-
Orange).. .. . . . . . 5385
@) Resistor (70,000 ohms) (Violet-Black-
Orange). . . . 5385
@ Condenser (.25 Mfd. Tubular). 30-4134
@ Resistor (500,000 ohms) (Yellow-
@
@
@
@
@
@
@
@
@)
®
@)
@
White-Yellow) 4517
Condenser (.02 Mfd. Tubular). 30-4113
Condenser (.00025 Mfd. Mica). 5858
Tone Control.. .. ........... 30-4178
Condensers (Inside 44) Part of @
Output Transformer .. 32-7178
Voice Coil and Cone Assembly (H-16) 02625
Field Coil and Pot . Assembly (H-16).. 36-3218
Resistor(! Meg.)(Brown-Black-Green) 4409
Condenser (.01 Mfd. Tubular) . . . . . . 30-4124
Volume Contr ol and On-OffSwitch .. . . 33-5066
Condenser (.00025 Mfd. Mica) . 5858
Resistor (10,000 ohms) (Brown-Black-
Orange)... .. .... . .. 33-1000
@ C~ndenser (.09 Mfd.) (Bakelite Block) 4989-AM
.25
.25
.25
.25
.45
.25
.30
.35
.75
1.60
.80
3.50
.25
.35
1.45
.35
~5
.35
List
Price
$0.30
.25
.60
1.10
.35
.20
.35
,25
.65
.35
.25
.35
.45
1.50
.20
.35
.40
1.50
.25
2.50
1.55
.35
NOTE• Run No. 6 has a No.
33-1114 resistor (8000
ohms) (Gray - Black -
Red) shunted acrosa
shadowmeter.
Runs No. 7 and after
have No. 5309 resistor
(2900 ohms) (Red -
White• Red) shunted
acrossshadowmeter.
Nos.on
Diagram De9Crlptlon PartNo.
@ Reaistor (100,000 ohms) (White-White-Orange) 4411
I
Condenser (.1 Mfd. Tubular) . . . . . . ......... 30-4122
B. C. Resistor (263 ohms; 23 ohms; Wire-Wound) . . . . 33-3069
Resist-Or
(.1 Meg.) (White-White-Orange)........ . .... 3767
I
~:rt~h~:~~- ~~~). (Orang~R~d~~an~e~ ::: :: :::: . :::;~~:
Condenser (Electrolytic-6 Mfd.) ..... .. . ... ... . .... . . 30-2020
Condenser (.015 Mfd. Twin- Bakelite Case) ... ........ 3793-E
@ Power Transformer.... . .. ... 32-7229
@ Condenser (Electrolytic-8 Mfd., 8 Mfd., 10 Mfd.) ..... 30-2073
@ Pilot Lamp (Dial).... .. .. .. .. .. .. .. .. .. .. . .. .. .. .. . 6608
@ Resistor (32,000 ohms) (Orange-Red-Orange) .......... 33-1026
A. C. Cord and Plug Assembly.. . . . . . . . . . . .. .. . .. L-943-A
Tube Shield... .... ... ... ... . ......... .. . ........... 28-1107
Four-Prong Socket.. ....... .. . . . . . .. . . . . . . . . . .. .. .. . 754•
Five-Prong Socket ........ , .. . . .. . ... . . .... ..... . . .. 7547
Six-Prong Socket ................... ... .. .. ..... .... 7546
Seven-Prong Socket ........ . .. ... , • .... . ...••....... 27-6005
~eaker Socket ...... .... . ........ .. . . . . . . ..... . .... 4957
nob (Large)............... .. .. ..... ...... ........ 27-4051
Knob (Small) ........ .......... ... ...... .. .. ....... 27-4052
Dial Assembly...... . . . . . . .. .. . . .. . . . . . .. . .. .. . .*31-1208
Dial Seale.. . .. . . . .. . . . . . . . . .. .. .. . . . . .. .. . . .. .. .. . 27-5042
Chassis Mounting Screw. . .. ... .. . . . . . . . . • . . . . . . . . . . . W-1345A
Chassis Mounting Foot (Steel).. . .. . ... .• •... ........ 29-1983
Chassis Mounting Foot (Rubber) ...... ...... . ........ 27-4116
ChassIS Mountmg Foot Plate .. ...... ... . . . .. . ....... 27-7497
Screw (Foot mtg.) .. .. . . . .. .. . . . . . . W-644A
List
Price
S0.25
.35
.25
.25
.35
1.50
1.40
.40
5.25
3.45
.11
.35
.60
.10
.10
.II
.II
.II
.JO
.10
.10
.45
.25
2.75 C.
.03
.05
.35 C.
1.50 C.
*Note: Some Model 29 sets use tuning condenser assembly No. 31-1250,which has
dial assembly 31-1245. This is not interchan geablewith 31-1192and 31-1208.
PHILCO RADIO & TELEVISION CORPORATION
~~ S . D
Printed in U. S. A efVlCe epaftfileflt
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