• Country
• Great Britain (UK)

• Manufacturer / Brand
• BTH (B.T.H.), British Thomson-Houston Co, Ltd.

• Year
• 1945 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 347577

• Number of Transistors

• Semiconductors
• Selenium-Rectifier Selenium-Rectifier

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: L.S. Field Supply Rectifier Unit D4B - BTH B.T.H., British Thomson-

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 17 x 5.125 x 7.25 inch / 432 x 130 x 184 mm

• Net weight (2.2 lb = 1 kg)
• 13 lb (13 lb 0 oz) / 5.902 kg

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 40 models, 35 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from BTH (B.T.H.), British Thomson-Houston Co, Ltd.