Silvertone 207 Ch= 132.45103 Order=57K 207

Sears, Roebuck & Co.; Chicago (IL)

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  • Year
  • 1959/1960 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 146020
    • Brand: Silvertone

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

 Technical Specifications

  • Number of Transistors
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s); Reflex
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931). / Ø 2.75 inch = 7 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Silvertone 207 Ch= 132.45103 Order=57K 207 - Sears, Roebuck & Co.; Chicago
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 3 x 6 x 1.5 inch / 76 x 152 x 38 mm
  • Notes

  • Battery operated transistorized portable AM receiver. Sams photofact set 489 folder 19 features the Silvertone models 206 and 207 as the same schematic.

    Model

    Cabinet

    206

    Smoke Gray

    207

    Malibu Coral

    The 2nd IF stage is reflexed as the 1st AF amplifier.

    Has high impedance speaker (30-34 Ω) with reed suspended between pm pole pieces, drives paper cone with a stylus, and is directly driven by a single ended collector, without an audio output transformer.

    One of several contemporary GE transistor radio models (see eg. P807H) do also employ this kind of speaker which was originally used in the 1920's because of it's high efficiency and high impedance.

  • Price in first year of sale
  • 17.95 $
  • Author
  • Model page created by Peter Hoddow. See "Data change" for further contributors.

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