• Country
• United States of America (USA)

• Manufacturer / Brand
• Zenith Radio Corp.; Chicago, IL

• Year
• 1928 ?

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 68373

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 1

• Valves / Tubes
• 80

• Power type and voltage
• Alternating Current supply (AC) / 25-40 Hz: 115 Volt

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Power Supply ZE702 - Zenith Radio Corp.; Chicago,

• Shape
• Chassis only or for «building in»

• Notes

• For 25 to 40 cycle mains. Used e. g. for model 70.

• External source of data
• Ernst Erb

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

• Mentioned in
• -- Schematic (La Riparazione degli Apparecchi Radio Delforno-Colciago - Lavagnolo - Italy - 1941)

• Other Models

• Here you find 4496 models, 4101 with images and 3615 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL