• Year
  • 1925
  • Category
  • Kit (Parts plus instruction) or building instructions only
  • Radiomuseum.org ID
  • 64700
    • Brand: Isofarad

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

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Penetrola [old Kit] - Walbert Manufacturing Company;
  • Shape
  • Tablemodel, slant panel.
  • Notes
  • Tuned RF amplifier. One dial (primary tuning control knob).

     

  • Price in first year of sale
  • 15.00 $
  • External source of data
  • Ernst Erb
  • Literature/Schematics (1)
  • Radio Broadcast, Jan. 1926, p. 417

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