T-67/ARC3 Transmitter for ARC-3 VHF Radio

MILITARY U.S. (different makers for same model)

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  • Year
  • 1945 ?
  • Category
  • Military transmitter
  • Radiomuseum.org ID
  • 216890

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

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Transmitter
  • Wave bands
  • VHF incl. FM and/or UHF (see notes for details)
  • Power type and voltage
  • Direct Current supply (DC) / 28/410 Volt
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: T-67/ARC3 Transmitter for ARC-3 VHF Radio - MILITARY U.S. different makers
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 12 x 7.5 x 16 inch / 305 x 191 x 406 mm
  • Notes
  • Airborne Transmitter for AN/ARC-3 VHF Radio.

    The Radio Transmitter provides a crystal-controlled RF power output of approx. 8 W (AM) in the 100 - 156 MHz VHF range. There are 8 preselected channels, equipped with CR-1A/AR crystals. Automatic tuning is acomplished by a motor-driven system that stops at the 18th harmonic of the crystal frequency

    Power reqirements:
    22...32 VDC from battery for filaments and relays, via Junction Box J-68. Consumption of 12 A includes Receiver R-77/ARC3 during transmit mode.
    410 VDC from Dynamotor DY-21 mounted on top of Power Junction Box J-68/ARC3. It is energized only when the PTT key is pressed.

    Variants:
    T-67A/ARC-3 (production change or modifications M-1 to M-3 to basic unit) mainly to improve tuning system
    T-67B/ARC3 includes T-67A mods. Additionally receptacle PL-151 is used also for TX modulation via Intercom.

  • Net weight (2.2 lb = 1 kg)
  • 21 lb (21 lb 0 oz) / 9.534 kg
  • Mentioned in
  • -- Original-techn. papers. ((AN 16-30 ARC3-3))
  • Author
  • Model page created by Franz Harder. See "Data change" for further contributors.

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