• Country
• United States of America (USA)

• Manufacturer / Brand
• Sentinel Radio Corp., Evanston, Illinois

• Year
• 1933 ?

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 57652

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

• Number of Tubes
• 5

• Valves / Tubes
• 77 78 77 38 25Z5

• Main principle
• Superheterodyne (common); ZF/IF 265 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 32; 6; AC 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: 560 [2nd Type] - Sentinel Radio Corp., Evanston

• Notes
• Farm radio, runs on 6 V car battery or 32 V Farm system or 115 V AC/DC mains.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• Other Models

• Here you find 710 models, 350 with images and 602 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois