4E21 Ch= 4E2

Admiral (brand) Continental Radio & Television Co.; Chicago, IL

Data
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  • Year
  • 1956/1957
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 82371
    • alternative name: Continental Radio & TV

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

 Technical Specifications

  • Number of Tubes
  • 4
  • 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 117 / 7.5 & 90 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: 4E21 Ch= 4E2 - Admiral brand Continental
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes

  • Three Power Portable AM Receiver Model Admiral 4E21 Ch= 4E2 

    Tuning Range:
    535 - 1620 kHz

    The Admiral models 4E21 (color = charcoal gray), 4F22 (= holiday red/polar white), 4F24 (Arizona tan/polar white), 4F26 (yellow/polar white) and 4F28 (turquoise/polar white) use the chassis 4E2 and on the same schematic there are also the models 4H22, 4H24, 4H26 and 4H28 with chassis 4H2. Colors again the same according to the last digit. There is a selenium rectifier, top pop-up Rotoscope antenna and an iron core loop antenna.

  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 17, 1957
  • Mentioned in
  • Sams Photofact Folder - Date 4-57 Set 354 Folder 2
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

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The model 4E21 is part of the collections of the following members.

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