• Country
• United States of America (USA)

• Manufacturer / Brand
• Crosley Radio Corp.; Cincinnati (OH)

• Year
• 1928

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 36855

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

• Number of Tubes
• 7

• Valves / Tubes
• UX226 UX226 UX226 UY227 UX226 UX171A UX280

• 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) / 115 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Gembox 610 - Crosley Radio Corp.;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• 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. See also third party offers like from Showers Brothers Co. as "The Broadway".

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Mentioned in
• Collector's Guide to Antique Radios (6th edition)

• Other Models

• Here you find 1807 models, 1050 with images and 1301 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Crosley Radio Corp.; Cincinnati (OH)