• Year
  • 1941
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 37316

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Batteries (any type) / 1, 5, 67, 5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: 378 - Detrola; Detroit MI
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 4.375 x 8.75 x 4 inch / 111 x 222 x 102 mm
  • Notes
  • The chassis layout in Riders as well as in Beitman shows a 1S4, while both schematics have a 3S4 (with tapped filament).
    Built-in loop antenna as first RF circuit
  • Net weight (2.2 lb = 1 kg)
  • 4 lb 0 oz (4 lb) / 1.816 kg
  • Price in first year of sale
  • 19.95 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 13 = 1942 and before

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