Trans-B-Former Battery Eliminator 502

Kellogg Switchboard & Supply Co.; Chicago (IL)

  • Year
  • 1924
  • Category
  • Power supply/conditioner or battery or charger 
  • Radiomuseum.org ID
  • 312694
    • Brand: Wavemaster

 Technical Specifications

  • Number of Tubes
  • 2
  • Valves / Tubes
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 60 Hz: 110 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Trans-B-Former Battery Eliminator 502 - Kellogg Switchboard & Supply
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 320 x 300 x 145 mm / 12.6 x 11.8 x 5.7 inch
  • Notes
  • "B" battery eliminator with maximum output of 10mA.  It has two - 4 pin tube sockets although there is some question regarding the tube type and if the device could be operated with only one tube.

  • Price in first year of sale
  • 50.00 USD
  • Author
  • Model page created by David Erali. See "Data change" for further contributors.

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