Wireless Set No. 62


The Wireless Set No. 62 was a British Army HF band radio transceiver. Introduced by Pye during the later part of World War II as a light-weight and waterproof replacement for the Wireless Set No. 22. Although intended as an interim design, it remained in production until 1966.

Technical specifications

  • AM, Superheterodyne radio transceiver.
  • Frequency coverage: 1.6 to 4.00 MHz and 4.0 to 10.0 MHz in two switched ranges.
  • Receiver sensitivity : 1.6 to 4.00 MHz, better than 3 μV; 4.0 to 10.00 MHz, better than 6 μV.
  • Intermediate frequency: 460 kHz
  • Receiver Audio output: 200 MW at 1 kHz
  • Transmitter RF output: 1 W
  • Circuitry: 11 valves
  • Weight: WS62 transceiver unit - 13.7 kg
  • Dimensions: 515 x 260 x 324 mm
  • Power Supply: 12 V DC at 3.0 to 5.0 Amps from external batteries, powering an internal rotary transformer. Later models used a transistorized inverter power supply.
  • Antenna Systems:
  • *Mobile station: vertical rod aerials 4 ft, 8 ft or 14 ft high
  • *Fixed station: vertical ground mounted 32 ft mast
  • *Fixed station: horizontal 100 ft long end-fed wire
  • Used Crystal Calibrator No. 10 as an external frequency reference