• Year
  • 1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 64134
    • alternative name: American Bosch Magneto
    • Brand: Essex

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Number of Transistors
  • Semiconductors
  • K42C
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • AC/DC-set / 105-125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Power out
  • 0.75 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 620 - United American Bosch Magneto
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 19 x 9.5 x 8.5 inch / 483 x 241 x 216 mm
  • Notes
  • Dial lamps: 2x 6,3V/0,15A.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before

 Collections | Museums | Literature

Collections

The model 620 is part of the collections of the following members.

Museums

The model 620 can be seen in the following museums.

 Forum