• Country
• United States of America (USA)

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

• Year
• 1952 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57612

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1U5 3V4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / AC/DC 117V =110-120/ 90 & 4.5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 345P - Sentinel Radio Corp., Evanston

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

• Notes

• Sentinel model 345P is a three power portable AM superheterodyne receiver.
  Selenium Rectifier, carmel, white & brown swirl colored plastic cabinet, carrying handle.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 23 (last), covering up to 1954

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 13, 1953

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 183, folder 14, dated 10-52)

• Other Models

• Here you find 726 models, 359 with images and 618 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois