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Full text of "RCA _Victor_Model_7-BX-6_Manual"

RCA VICTOR MODELS 
7-BX-6, 7-BX-7 (Ch. RC-1161, A) 



TRADE NAME RCA Victor Models 7-BX-6E, -6J, -6L, 7-BX-7J, -7L (Ch. RC-1161, RC-1161A) 
MANUFACTURER RCA Victor Radio & "Victrola" Div. , Radio Corp. , of America, Camden 8, N. J. 
TYPE SET Three Power Portable AM Receiver 
TUBES (Four) Types 1R5 Converter, 1U4 IF Amplifier, 1U5 Det-AVC-AF Amp. , 3V4 Output 

POWER SUPPLY 110-120 Volts AC -DC (or) 7. 5Volts "A" Supply & 90 Volts "B" Supply 
RATING . 15 Amp. (£) 117 Volts AC (or) 50MA (a) 7. 5Volts DC & UMA Q 90 Volts DC 
TUNING RANGE-BROADCAST 540KC - 1600KC 


ALIGNMENT INSTRUCTIONS-READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT 


Use battery power, if possible. If AC power is used, use an isolation transformer when available. If not, connect a 
. LMFD capacitor in series with low side of the signal generator and B-. 

Volume control should be at maximum position. Output of signal generator should be no higher than necessary to obtain 
an output reading. Use an insulated alignment screwdriver for adjusting. 


DUMMY 
ANTENNA 


SIGNAL 
GENERATOR 
COUPLING 


SIGNAL 
GENERATOR 
FREQUENCY 


RADIO 

DIAL 

SETTING 


OUTPUT 
METER 


ADJUST 


REMARKS 


. 01MFD 


High side to pin 6 
(grid) of 1U4 (V2). 
Low side to chassis. 


455KC 
(400% Mod) 


Point of non- 
interference. 


Across 
voice coil. 


A1,A2 


Adjust for maximum output If AC 
power is used without an isolation 
transformer, reduce dummy antenna 
to 200MMF to reduce hum modulation. 




High side to antenna 
lug on tuning gang. 
Low side to chassis. 








A3,A4 




Perform the following steps with chassis cover in place and chassis installed in cabinet. 
Connect antenna (slots provided in cabinet). 




Loop 


1620KC 


Tuning gang 
fully open. 


Across 
voice coil. 


A5 


Fashion loop of several turns of wire 
and radiate signal Into loop of 
receiver. Adjust for maximum output. 






1400KC 


Tune to 1400 KC 
signal. 




A6 


" 






600KC 


Tune to 600KC 
signal. 




A7 


Adjust for maximum output while 
rocking tuning gang. 



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>—• 





HOWARD W. SAMS & CO., INC. • Indianapolis 5, Indiana 



"The listing of any available replacement part herein does not constitute in any 
case a recommendation, warranty or guaranty by Howard W. Sams & Co., Inc., 
as to the quality and suitability of such replacement part. The numbers of these 
parts have been compiled from information furnished to Howard W. Sams & Co., 
Inc., by the manufacturers of the particular type of replacement part listed." 
"Reproduction or use, without express permission, of editorial or pictorial con- 
G664 



tent, in any manner, is prohibited. No patent liability is assumed with respect to 
the use of the information contained herein. Copyright 1 957 by Howard W. 
Sams & Co., Inc., Indianapolis 5, Indiana, U. S. of America. Copyright under in- 
ternational Copyright Union. All rights reserved under Inter-American Copyright 
Union (1910) by Howard W. Sams & Co., Inc." Printed in U. S. of America 



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