• Country
• Great Britain (UK)

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: GB

• Year
• 1940 ??

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 109201

• Number of Tubes
• 2

• Valves / Tubes
• unknown_Tube

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 2 & 90 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Training Sets W.T.MK.3 - Unknown - CUSTOM BUILT: GB

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 320 x 250 x 200 mm / 12.6 x 9.8 x 7.9 inch

• Notes
• Training unit for CW education, built-in oscillator and atmosphere producer with buzzer for distortion generation.

• Net weight (2.2 lb = 1 kg)
• 5.6 kg / 12 lb 5.4 oz (12.335 lb)

• Source of data
• -- Collector info (Sammler)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 117 models, 107 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: GB