• Country
• United States of America (USA)

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

• Year
• 1942

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57506

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

• Number of Tubes
• 7

• Valves / Tubes
• 6SA7 6SK7 6SQ7 6SF5 optional 6U5 6K6G 6K6G 5Y3G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 220 [With & without 6U5] - Sentinel Radio Corp., Evanston

• Shape
• Tablemodel, low profile (big size).

• Notes
• Sentinel 220;
  Table model, some models equiped with a 6U5 tuning indicator tube.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Mentioned in
• Machine Age to Jet Age II (page 250.)

• 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