Vacuum Tube Detector Unit Type 3-120

Bowman & Co., A.W.; Boston, Massachusetts

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  • Year
  • 1921–1923
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 198233

 Technical Specifications

  • Number of Tubes
  • 1
  • Main principle
  • Detector with Vacuum Tube (Valve), no tuner
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Vacuum Tube Detector Unit Type 3-120 - Bowman & Co., A.W.; Boston,
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 5 x 5 x 0 inch / 127 x 127 x 0 mm
  • Notes
  • A. W. Bowman Type 3-120 Unit Panel Vacuum Tube Detector In the 1921-1923 Sears, Roebuck and Co. Radio catalogs, Sears offered a series of Unit panels that were produced by the Bowman Company. The panels were each 5 inches square and could be joined together to form a complete receiver.
  • Net weight (2.2 lb = 1 kg)
  • 3 lb (3 lb 0 oz) / 1.362 kg
  • Price in first year of sale
  • 8.00 $
  • Literature/Schematics (1)
  • 1923 Sears & Roebuck Radio Catalog
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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