Super 70 Marine Transceiver CTR70, CTR70A

Crammond Radio Manufacturing Co. PTY.(Melton & Co.); Brisbane

  • Year
  • 1969
  • Category
  • Commercial Transmitter & Receiver (TRX not Amateur)
  • Radiomuseum.org ID
  • 272083

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Number of Transistors
  • 19
  • Semiconductors
  • Main principle
  • Transceiver
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 12 or 24 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 6 cm = 2.4 inch
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Super 70 Marine Transceiver CTR70, CTR70A - Crammond Radio Manufacturing
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 17 x 8 x 13 inch / 432 x 203 x 330 mm
  • Notes
  • Marine HF transeiver combined with 3 band receiver,
    covering 540 - 1610 kHz broadcast band, 1605 - 4700 kHz and 4.5-10 MHz short wave.
    Provision for 10 crystal locked transmit and receive channels.
    Max 65 Watt Input.

    CTR70 is a 12 Volt unit and the CTR70A is a 24 Volt unit.
    Both came with a Microphone.

  • Net weight (2.2 lb = 1 kg)
  • 30 lb 0 oz (30 lb) / 13.620 kg
  • Literature/Schematics (1)
  • -- Schematic
  • Literature/Schematics (2)
  • - - Manufacturers Literature
  • Author
  • Model page created by Micheal Norford. See "Data change" for further contributors.

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