General Telev. & Radio Corp. 15A5 Schematic

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Product Information:
Model:15A5
Manufacturer:General Telev. & Radio Corp.

Schematics Content:

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Page 1:

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MODELS 9A5, 15A5, 1'/A5 '
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(C)John F. Rider
For alignment see p. 15-7. For Model 17A5 chassis vievr,sep P.15 4

Page 2:

ELS 9?"5'15"?>>1"*5 GENERAL TELEV & RADIO coRP ' "WELS 1A5>>5A5>>
MODEL 1?A4F
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SIGNAL
D C VOLTA 'ZBSISTAKCE D-C VOLTAGE RESISTAWCI
20,000 ?'n`L8 1000 OEIS 20,000 GUS 1000 GIIIS
P'R VOLT PBR VOLT TUB P VTVI FH! VOLT FIR VOLT
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SIGNAL
0
0
MODELS
DATA
Ill MBE A1' PU!!! X
HOP AVC AC1IU| AID A
Ill fl!! NUT AID
MODELS
ORE AT PMIT I ID UID!
THIS PGI!! All) UIWIII
MODEL
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gJQhD I. Rider

Page 3:

v ` Moons ].A5,'3A5, 5A5,l9A5
- GENERAL TELEV. & RADIO CORP. MODELS 9145, 15451 1745
~ ALIGNMENT
nouns ms, BA5. 5A5, 19A5 _
The chassis must be removed from the cabinet in order to align
this receiver. Connect the output meter across the voice coil. '
Connect the signal generator to the Standard Hazeltine Model 1150 loop,
and couple loosely to the receiver loop. Set the receiver volume
control at maximum. The tuning condenser plates should be fully
meshed when the dial pointer is at the index mark at the low frequency
end of the dial. The signal generator output should at all times be
just sufficient to obtain a minimum deflection on the output meter.
Set the signal generator to 456 Kc. Adjust the 1-f trimmers for maxi-
mum meter deflection in the following sequence- L , L2, LB, L1 Set
the generator and receiver to 1600 Kc and adjust oscillator trimmer
ck for maximum output Set the generator and receiver to 1400 Kc and
adjust loop trimmer C5 for maximum output
MODELS 9A5: 15A5 17A5
The chassis must be removed from the cabinet in order to align
this receiver Connect the output meter across the voice coll
Connect the signal generator to the standard Hazeltine Loop Model 1150
and couple loosely to the receiver loop Set the receiver volume con
trol at maximum The tuning condenser plates should be fully meshed
when the dial pointer is at the index mark at the low frequency end of
the dial The signal generator output should at all times be just
sufficient to obtain a minimum deflection on the output meter Set
the signal generator to 456 Kc and adjust the 1 f trimmers for maxi
mum meter deflection in the following sequence L , LZ, L2, Ll Set
the generator and receiver to 1600 Kc and adjust the oscillator trimmer
C4 for maximum output Set the generator and receiver to 1400 Kc and
adjust the loop trimmer C3 for maximum output
MODEL l4A4F
Alignment may be accomplished with the chassis in the cabinet if
a small alignment screwdriver is used Connect the output meter
across the voice coil Connect the high side of the signal generator
to the antenna lead through a 01 mf condenser and the low side to
the black ground wire Set the receiver volume control at maximum
The tuning condenser plates should be fully meshed when the dial
pointer is at the index mark at the low frequency end of the dial
The signal generator output should at all times be just sufficient
to obtain a minimum deflection on the output meter Set the signal
generator to 455 Kc and adjust the 1 f trimmers for maximum output
in the following sequence L5, L3, L4, L2 Set the generator and
maximum output Set the generator and receiver to 1400 Kc and adjust
the antenna trimmer C3 for maximum output Set the generator and
receiver to 600 Kc and adjust the antenna coil tuning slug Ll for
maximum output Repeat the high frequency adjustment of the antenna
trimmer C3 at 1400 Kc
receiver to 1500 Kc and adjust the oscillator shunt trimmer ch for
(C)John F. Rider I

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