• Country
• Great Britain (UK)

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

• Year
• 1942

• Category
• Military transmitter

• Radiomuseum.org ID
• 123571

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

• Number of Tubes
• 8

• Valves / Tubes
• ATS25 ATS25 ATP35 ATS25 ARP34 EA50 AU1 AW3 AW3

• Main principle
• Transmitter

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 240 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Wireless Set No.12 - MILITARY U.K. different makers

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

• Dimensions (WHD)
• 605 x 310 x 390 mm / 23.8 x 12.2 x 15.4 inch

• Notes

• Wireless Set No.12 is a ground / vehicle station transmitter developed in 1940/41. 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 25W on CW, 7W 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.
  An alternative was the no very successful Wireless Set No.23 and the Wireless Set No.33, which was in fact a W.S. No.12 with a RF power amplifier mounted on top of the set in the same cabinet.
  The Wireless Set No.12 did replace the W.S. No.1 and the W.S. No.9 which was not very suitable to be used on the move, it was a direct replacement of the W.S. No.2 and it was replaced by the Wireless Set. No.53 in late WW II.

• Net weight (2.2 lb = 1 kg)
• 54 kg / 118 lb 15.1 oz (118.943 lb)

• Mentioned in
• Wireless for the Warrior Vol.1

• Author
• Model page created by Nikolaus Löwe. See "Data change" for further contributors.

• Other Models

• Here you find 152 models, 120 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)