7QK4 Ch= RC-478B
RCA (RCA Victor Co. Inc.); New York (NY)
- Country
- United States of America (USA)
- Manufacturer / Brand
- RCA (RCA Victor Co. Inc.); New York (NY)
- Year
- 1939
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 53751
-
- alternative name: RCA Manufacturing || Victor Talking Machine
Beitman
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- Superhet with RF-stage; ZF/IF 455 kHz
- Wave bands
- Broadcast, Long Wave and 2 x Short Wave.
- Details
- Record Player (perh.Changer)
- Power type and voltage
- Alternating Current supply (AC)
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm
- Material
- Wooden case
- from Radiomuseum.org
- Model: 7QK4 Ch= RC-478B - RCA RCA Victor Co. Inc.; New
- Shape
- Console with any shape - in general
- Dimensions (WHD)
- 26 x 38 x 11.8 inch / 660 x 965 x 300 mm
- Notes
- This model has 3 power supply ratings:
Rating A...105-125V, 50-60 Cycles
Rating B...105-125V, 25-60 Cycles
Rating C...105-130;140-160;200-250V, 40-60 Cycles
- External source of data
- Ernst Erb
- Source of data
- Guide to Old Radios
- Circuit diagram reference
- Rider's Perpetual, Volume 12 = ca. 1941 and before
- Mentioned in
- Pre-War Consoles
- Literature/Schematics (1)
- RCA Victor Service Notes "Red Book" Series
- Other Models
-
Here you find 5134 models, 3237 with images and 4171 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)