• Country
• United States of America (USA)

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

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57551

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

• Number of Tubes
• 5

• Valves / Tubes
• 1R5 1T4 1S5 3Q4 117Z3

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 117/67,5/3 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: 286 P - Sentinel Radio Corp., Evanston

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes

• Line supply = AC or DC 67,5V=+B 1,5Vx2 =A ( filament) selenium rectifier and 68 ohm resistor (item 40 and 23 )are used in model 286PR only. 117Z3 tube is used in model 286P only Built in loop antenna

  Available in maroon bakelite, black bakelite or ivory plaskon.

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

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

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• Table Top Radios Vol. 1 Stein 98 (page 140.)

• Other Models

• Here you find 705 models, 349 with images and 596 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois