R-77B/ARC-3 Receiver for ARC-3 VHF Radio R-77B/ARC-3

• Country
• United States of America (USA)

• Manufacturer / Brand
• MILITARY U.S. (different makers for same model)

• Year
• 1945 ?

• Category
• Military Receiver

• Radiomuseum.org ID
• 163692

• Picture
• Schematics

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

• Number of Tubes
• 16

• Valves / Tubes
• 12SG7 12SG7 12H6 12SN7GT 12SN7GT 12SL7GT 12A6GT 9001 6AK5W 6AK5W 6AK5W 6AK5W 6AK5W 12SH7 9002 9002

• Main principle
• Superheterodyne (common); ZF/IF 12000 kHz; 3 AF stage(s)

• Wave bands
• VHF incl. FM and/or UHF (see notes for details)

• Power type and voltage
• Direct Current supply (DC) / 28 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 1.3 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: R-77B/ARC-3 Receiver for ARC-3 VHF Radio R-77B/ARC-3 - MILITARY U.S. different makers

• Shape
• Rack

• Dimensions (WHD)
• 280 x 158 x 365 mm / 11 x 6.2 x 14.4 inch

• Notes

• Frequency Range: 100-156 MHz(AM).
  The R-77 is the receiver for radio set ARC-3.
  It provides 8 selectable crystal controlled channels and tunes itself to the desired frequency. It is powered from 28 VDC. 200V supply is provided from dynamotor DY-22 as a part of power junction box J-68.
  
  Variants:
  R-77A/ARC-3 with IF output (near ANT receptacle) for operation of a guard channel converter
  R-77B/ARC-3 (or R-77A with Mod. M-2) provides tuning inhibit during warm-up.

• Net weight (2.2 lb = 1 kg)
• 20.5 lb (20 lb 8 oz) / 9.307 kg

• Author
• Model page created by Rudolf Osterkamp. See "Data change" for further contributors.

• Other Models

• Here you find 398 models, 350 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MILITARY U.S. (different makers for same model)