Silvertone Order= 57DM 4447

Sears, Roebuck & Co.; Chicago (IL)

  • Year
  • 1936/1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 56275
    • Brand: Silvertone

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 465 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 135 & 2 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
  • Power out
  • 1.9 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone Order= 57DM 4447 - Sears, Roebuck & Co.; Chicago
  • Shape
  • Console with any shape - in general
  • Dimensions (WHD)
  • 21 x 38 x 11.8 inch / 533 x 965 x 300 mm
  • Notes
  • The Silvertone model 4447 is the same as model 4446 but uses 2-volt storage battery tubes with adaptor instead of the 3 volt dry battery tubes (No. 5023P) and the 1U1 ballast. For details see schematic.
  • Price in first year of sale
  • 52.50 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before
  • Literature/Schematics (1)
  • Riders 8-25, 26, 27

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