• Country
• United States of America (USA)

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

• Year
• 1957 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 84680

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

• Number of Transistors
• 6

• Semiconductors

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: CR-729 - Sentinel Radio Corp., Evanston

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 18, 1958

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• 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