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A78 Ch= RC-1084A

A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374661) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374662) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374663) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374664) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374665) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374666) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 252998) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 252999) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 253000) Radio
 
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 253001) Radio
A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374660) Radio A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 252997) Radio
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A78 Ch= RC-1084A; RCA RCA Victor Co. (ID = 1374660) Radio
RCA RCA Victor Co.: A78 Ch= RC-1084A [Radio] ID = 1374660 933x1028
Select picture or schematic to display from thumbnails on the right and click for download.
For model A78 Ch= RC-1084A, RCA (RCA Victor Co. Inc.); New York (NY):
Picture from RCA databook
 
Country:  United States of America (USA)
Manufacturer / Brand:  RCA (RCA Victor Co. Inc.); New York (NY)
alternative name
 
RCA Manufacturing || Victor Talking Machine
Year: 1950/1951 perfect model Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: 6J6 6BA6 6AU6 6AL5 6AV6 6V6GT 6X5GT
Main principle Superheterodyne (common); ZF/IF 455/10700 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)     8 FM circuit(s)
Wave bands Broadcast (BC) and FM or UHF.
Details Changer (Record changer)
Power type and voltage Alternating Current supply (AC) / 60 cycles, 115 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 inch = 30.5 cm
Power out 2 W (5 W max.)
from Radiomuseum.org Model: A78 Ch= RC-1084A - RCA RCA Victor Co. Inc.; New
Material Wooden case
Shape Console with any shape - in general
Dimensions (WHD) 30.5 x 32 x 17.25 inch / 775 x 813 x 438 mm
Notes

The RCA A78 is an AC operated combination automatic phonograph and BC/FM band receiver.  Has both a 45 RPM turntable and a 33 1/3, 78 RPM turntable.  The 45 RPM turntable used is model RP-168, which holds up to ten 7 inch fine groove records.  The 33 1/3, 78 RPM turntable used in this model is 960282-1 , which holds up to ten 12 inch or twelve 10 inch records. The 45 RPM turntable is in the upper compartment and the 78 RPM turntable is in the lower compartment.

The BC band frequency range is 540 to 1600kHz.  The FM band frequency range is 88 to 108MHz.  Uses Qty(3) #51 lamps, two for the dial and one for the jewel.

Has built-in AM and FM antenna's, with provisions to connect an external FM antenna.

The chassis RC-1084A is shown in a schematic (from Riders) for the models A78 and 9W78. On the same document one can see a cabinet which there is called PH 471. For neither name a Rider's, Photofact or Beitman could be found. The 1950 RCA Victor Service Notes manual make no metion of a model 9W78.  The four knobs are Power/Volume, Tone (treble, normal, bass), tuning and selector (FM, AM, PH, XPH). By the way: It was in the early 1960s when RCA Victor called a budget label of records "Victrola" like its first console phonographs.

External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 21, Copyright 1950
Literature/Schematics (1) RCA Victor Service Notes "Red Book" Series (RCA Victor Service Data Volume VI 1950 Pages 5-10)
Literature/Schematics (2) Rider's Perpetual, Volume 21 = Copyright 1950 (Riders RCA 21-5 to 21-12)


All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)
Here you find 4913 models, 2892 with images and 3995 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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