• Year
  • 1939 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 42976
    • Brand: General

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF without regeneration
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 457 - General Television and Radio
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 10.5 x 12.5 x 7.25 inch / 267 x 318 x 184 mm
  • Net weight (2.2 lb = 1 kg)
  • 8 lb (8 lb 0 oz) / 3.632 kg
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 10 = 1939 and before
  • Mentioned in
  • Rider's Misc. Page 10-5

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