• 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
• 232550

• • 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-644 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-644 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. Cabinet color is Black 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 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)