• Year
  • 1919 ?
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 313681
    • alternative name: Lee De Forest Mfg.

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Main principle
  • Detector with Vacuum Tube (Valve), no tuner
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: Audion Panel P-402 - DeForest Radio Telephone &
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • The P-402 Audion Panel includes a tube socket, grid leak and condenser, and filament rheostat. Connection to batteries and other circuit elements via binding posts. 40V "B" Battery included in cabinet.

    Types P-401 and P-400 have a narrower panel.

     

  • Price in first year of sale
  • 22.00 $
  • Mentioned in
  • Atlantic Radio Co. Bulletin 14 (1919)
  • Author
  • Model page created by Nikolaus Löwe. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum