• Year
  • 1946
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 65237

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
  • AC/DC-set / 117 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 4581 - Watterson Radio Mfg. Co.,
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 11.5 x 8 x 5.75 inch / 292 x 203 x 146 mm
  • Notes
  • Self Contained Loop Antenna. There are several cabinet variants, with slightly different dial ornament and knobs.
  • Net weight (2.2 lb = 1 kg)
  • 7 lb (7 lb 0 oz) / 3.178 kg
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 15 = 1947 and before

 Collections | Museums | Literature

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The model 4581 is part of the collections of the following members.

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