• Country
• United States of America (USA)

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

• Year
• 1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 53741

• • 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
• 12SA7 12SK7 6C4 6AQ6 35L6GT 35L6GT

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Details
• Changer (Record changer)

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Power out
• 2.2 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Victrola 77U Ch= RC-1057A - RCA RCA Victor Co. Inc.; New

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

• Dimensions (WHD)
• 15.7 x 10.8 x 18.8 inch / 399 x 274 x 478 mm

• Notes
• Selenium Rectifier. Automatic record changer with "Silent Sapphire" pickup. Case available in smooth, polished walnut or rich mahogany finish.
  5" x 7" PM elliptical speaker.

• Price in first year of sale
• 100.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 18 = 1949 and before

• Mentioned in
• Photofact Folder, Howard W. SAMS (Set 38, Folder 17)

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 09, 1949

• Other Models

• Here you find 5131 models, 3234 with images and 4167 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)