• Country
• United States of America (USA)

• Manufacturer / Brand
• Collins Radio Company; Cedar Rapids (IA)

• Year
• 1952–1956

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 69101

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

• Number of Tubes
• 17

• Valves / Tubes
• 6AK5 6BE6 6AK5 6BE6 6BE6 6BA6 6BA6 6BA6 6BA6 6BA6 12AX7 6BA6 12AU7 12AX7 6AQ5 6BA6 5V4G 0A2

• Main principle
• Superhet with RF-stage

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

• Power type and voltage
• Alternating Current supply (AC) / 110-120; 220-240 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 2.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: 51J-3 - Collins Radio Company; Cedar

• Shape
• Rack

• Dimensions (WHD)
• 21.1 x 12.5 x 13.7 inch / 536 x 318 x 348 mm

• Notes
• General-coverage receiver covering 0.5 to 30.5 MHz in 30 bands, AM/CW/MCW.
  No bandwidth switch under BFO-Pitch control, could be upgraded to 51J-4 with 354A-1 Collins Mechanical Filter Conversion kit.
  Military designation R-388.

• Net weight (2.2 lb = 1 kg)
• 28 kg / 61 lb 10.8 oz (61.674 lb)

• Price in first year of sale
• 1,000.00 $

• External source of data
• Eilert Menke

• Source of data
• Communications Receivers

• Mentioned in
• The Pocket Guide to Collins Amateur Radio Equipment 1946 to 1980 (Shortwave Receivers-past & present (633))

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 12-54, set 260, folder 6)

• Author
• Model page created by a member from D. See "Data change" for further contributors.

• Other Models

• Here you find 98 models, 75 with images and 35 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)