• Year
  • 1948
  • Category
  • Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
  • Radiomuseum.org ID
  • 37736
    • Brand: Pierce Airo

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • RF Converter/Adapter (not voltage converter); ZF/IF 10.7 kHz
  • Tuned circuits
  • 1 AM circuit(s)     8 FM circuit(s)
  • Wave bands
  • FM Broadcast Band Only
  • Details
  • Converter
  • Power type and voltage
  • AC/DC-set / 105-125 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: B-612 - DeWald Radio Mfg. Corp.,
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 11 x 7 x 6 inch / 279 x 178 x 152 mm
  • Notes
  • Wireless FM band tuner. Rebroadcasts demodulated FM signals in BC(500-750kHz) band.
  • Net weight (2.2 lb = 1 kg)
  • 5 lb (5 lb 0 oz) / 2.270 kg
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 19 = 1949 and before

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The model B-612 is part of the collections of the following members.

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