Gemchest 610

Crosley Radio Corp.; Cincinnati (OH)

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  • Year
  • 1928
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 36549

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF without regeneration; 3 AF stage(s); Neutrodyne
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 60 cycles 110 volts or 25 cycles 110 volts or 220 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Gemchest 610 - Crosley Radio Corp.;
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • The models Gemchest 609, Gembox 609, Gembox 610 and Gembox 610 as AC versions share the same schematic with either a tube line up of UX-226, UX-226, UX-226, UY-227, UX-226, UX-171A, UX-280 or Cunningham tubes CX326, CX326, CX326, C327, CX362, CX371A and CX380. Gemchest is a console, Gembox a table radio. The mains transformer is either for 110 Volt 60 cycles, 110 Volt 25 cycles or 220 Volt 25 cycles.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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