• Country
• United States of America (USA)

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

• Year
• 1954

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 231751

• • 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
• 12BA6 12BE6 12BA6 12AV6 35C5 35W4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / Either AC 50 to 60 cycles, 115 Volts or DC 115 Volt

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

• Power out
• 0.8 W (1.2 W max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 4-X-646 Ch= RC-1140 - RCA RCA Victor Co. Inc.; New

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 11.25 x 7.125 x 6.375 inch / 286 x 181 x 162 mm

• Notes

• The RCA 4-X-646 is an AC/DC operated 6 tube BC band receiver.  BC band tuning range is 540 to 1600kHz.  Has phone input with radio/phono selector switch on rear of chassis.  Has loop antenna with provisions for external antenna. Has Qty(1) elliptical PM 4" x 6" speaker. Tuning drive ratio is 10 to 1. Cabinet color is Ivory with Brick Red speaker grill.

  The following models use the same schematic and cabinet but have different cabinet colors:

  Model Number	Cabinet Color
  4-X-641	Black and Artic White
  4-X-643	Black and Chartreuse
  4-X-644	Black and Brick Red
  4-X-646	Ivory and Brick Red
  4-X-647	Ivory and Dark Green
  4-X-648	Ivory and Powder Blue

   

• Net weight (2.2 lb = 1 kg)
• 6 lb (6 lb 0 oz) / 2.724 kg

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 14, 1954 (Page 94)

• Literature/Schematics (2)
• - - Manufacturers Literature (RCA Service Data 1954 No. 4 Datasheet, second edition)

• Author
• Model page created by John Kusching. See "Data change" for further contributors.

• Other Models

• Here you find 5122 models, 3225 with images and 4156 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)