• Year
  • 1938 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 43940

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm
  • Power out
  • 3.4 W (max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 20 - Halson Radio Mfg. Co.; New
  • Shape
  • Console with any shape - in general
  • Notes
  • BC (540-1725 kHz), TROP (2.3-7.9 MHz) and SW (7.4-25.0 MHz) bands. Schematic drawn September 22, 1937.
  • Price in first year of sale
  • 39.50 USD
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before

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