• Country
• United States of America (USA)

• Manufacturer / Brand
• RCA (RCA Victor Co. Inc.); New York (NY)

• Year
• 1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 54450

• • alternative name: RCA Manufacturing || Victor Talking Machine

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 6

• Valves / Tubes
• 6SA7 6SK7 6SQ7 6AD7G 6F6G 5Y3G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 105-125; 200-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Q25 Ch= RC-507A - RCA RCA Victor Co. Inc.; New

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 18.25 x 13.25 x 8.25 inch / 464 x 337 x 210 mm

• Notes
• BC and 4xSW.
  Frequency Ranges:
  Standard Broadcast ("A" Band) --- 540-1,720 kc (556-174 m);
  Medium Wave ("B" Band) --- 3.0-9.5 mc (100-31.6 m);
  "31" Meter Spread Band --- 9.5-11.7 mc (31.6-25.6 m);
  "25" Meter Spread Band --- 11.7-15.1 mc (25.6-19.9 m);
  "19.13" Meter Spread Band --- 15.1-22.5 mc (19.9-13.3 m).

  Power Supply Ratings:
  Rating A --- 105-125 volts --- 50-60 frequency --- 65 watts;
  Rating B --- 105-125 volts --- 25-60 frequency --- 65 watts;
  Rating C --- 105-125, 200-250 --- 50-60 frequency --- 65 watts.
  

• Net weight (2.2 lb = 1 kg)
• 27.5 lb (27 lb 8 oz) / 12.485 kg

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Mentioned in
• Guide to Old Radios

• Literature/Schematics (1)
• Machine Age to Jet Age III

• Literature/Schematics (2)
• RCA Victor Service Notes "Red Book" Series

• Other Models

• Here you find 5133 models, 3236 with images and 4168 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)