Transistor Roto-Scope Antenna 7L12 (Ch= 7L1)

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

  • Year
  • 1956
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 82390
    • alternative name: Continental Radio & TV

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

 Technical Specifications

  • Number of Transistors
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Batteries / addl. power jack / D: 6 x 1.5 / 9 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: Transistor Roto-Scope Antenna 7L12 - Admiral brand Continental
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Notes
  • Admiral model 7L12 is a battery operated portable AM transistorized receiver.

    Accessory: Sun Power Pack.
    Introduced in 1956 as the world's first solar powered radio.
    Admiral's first transistor radio.

  • Price in first year of sale
  • 250.00 $
  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 17, 1957
  Solar Radio History 2935 KB
  • Documents regarding this model
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

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