Receiver-Transmitter RT-68/GRC

• Country
• United States of America (USA)

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

• Year
• 1957 ?

• Category
• Military Transceiver (TRX)

• Radiomuseum.org ID
• 87910

• Picture
• Schematics

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

• Number of Tubes
• 27

• Valves / Tubes
• DF904 DAF91 DA90 DF92 DK91 1AE4 DL95 DL93 DCC90 DL98 EF95 2E24

• Main principle
• Superhet, double/triple conversion; 2 AF stage(s)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 12/24 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Receiver-Transmitter RT-68/GRC - MILITARY U.S. different makers

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 285 x 230 x 330 mm / 11.2 x 9.1 x 13 inch

• Notes
• • RT-68/GRC tranceiver for mobile purposes
  • part of AN/GRC-7 and AN/GRC-8 radio sets
  • 38-55 MHz continous or presets in 100 kHz steps
  • FM
  • Output power 2 watts (LO) or 15 watts (HI)
  • Needs power supply PP-109 or PP-112
  • Mainly used in tanks like M88
  • Different manufacturers, also made in Germany by SEL
  • Tubes only one times listed.

• Net weight (2.2 lb = 1 kg)
• 19.1 kg / 42 lb 1.1 oz (42.07 lb)

• Mentioned in
• -- Original-techn. papers. (TM11-611)

• Author
• Model page created by Arthur Rudolph. See "Data change" for further contributors.

• Other Models

• Here you find 393 models, 345 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)