• Country
• Great Britain (UK)

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

• Year
• 1942

• Category
• Military transmitter

• Radiomuseum.org ID
• 203446

• Number of Tubes
• 22

• Valves / Tubes
• AW3 AW3 ATS25 ATS25 ATS25 ATP35 ARP34 AU1 ARP34 6C5GT 6C5GT ATS25 ATS25 6X5GT ATP100 ATP100 ATP100 ATP100 CV128 CV128 5U4G 5U4G

• Main principle
• Transmitter

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC) / 230 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Wireless Set No.12 HP [High Power] - MILITARY U.K. different makers

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Notes
• Wireless Set No.12 HP (High Power) is a high power ground / vehicle station transmitter developed in 1942, in fact it is a Wireless Set No.12 with an additional High Power Rack with a 250 W RF amplifier.
  Frequency coverage 1.2 - 17.5 MHz in four ranges (1,2-2,55 / 2,5-5,3 / 5,2-10,5 / 10-17,5 MHz). Power output 350 Watts on CW, 250 Watts on MCW and telephony.
  Normally associated with receiver R107 or R106 (HRO receiver).
  In 1942, a 100 mil R/T has been developed, it became the Wireless Set No.12 HP (high power), in fact a Wireless Set No. 12 driving a 250 W RF amplifier in a separate cabinet. When stationary, a dipole, windom antenna could be used, on move, a vertical twin rod.

• Mentioned in
• Wireless for the Warrior Vol. 1, L. Meulstee

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 146 models, 114 with images and 48 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MILITARY U.K. (different makers for same model)