Silvertone 4548 Pre-octal tubes

Sears, Roebuck & Co.; Chicago (IL)

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  • Year
  • 1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 88258
    • Brand: Silvertone

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
  • Power out
  • 0.9 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone 4548 [Pre-octal tubes] - Sears, Roebuck & Co.; Chicago
  • Shape
  • Console with any shape - in general
  • Notes
  • Farm radio. Vibrator for +B. Riders distinguishes between glass and octal tubes. That is insufficient insofar as the octals in question have glass bulbs as well. We say octals and pre-octals.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before
  • Literature/Schematics (1)
  • Riders 7-57, 58
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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