• Country
• United States of America (USA)

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

• Year
• 1946 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57450

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

• Number of Tubes
• 6

• Valves / Tubes
• 1N5GT 1A7GT 1N5GT 1H5GT 3Q5GT 117Z6GT

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 115/90/4,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• from Radiomuseum.org
• Model: 1U285P - Sentinel Radio Corp., Evanston

• Notes
• Line supply=AC or DC +B=2x45Vbat (90V) A=2x4,5Vbat (9V) Built in loop antenna. Sams photofact set 6 folder 27 date 10-46 features this model as IU-285P.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 16 = ca. 1948 and before

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 6 folder 466-27 date 10-46)

• 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