Silvertone Order= 57EM 4498

Sears, Roebuck & Co.; Chicago (IL)

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  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 56310
    • 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; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 2 x 45 & 4.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm
  • Power out
  • 0.6 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone Order= 57EM 4498 - Sears, Roebuck & Co.; Chicago
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 16.5 x 16.8125 x 12.625 inch / 419 x 427 x 321 mm
  • Notes
  • The Silvertone model 4498 is the same as model 4499 but this model 4498 uses dry batteries and the model 4499 a 4 volt storage battery for the heaters. For details see schematic. It tells us that it has a "magnetic" speaker with approximate 1000 ohms DC resistance, but the Sears catalog tells us "It has a 6-inch Permanent Magnet-Dynamic Speaker, Ball Bearing Condenser, Automatic Volume Control, Personal Tone control." The schematic tells us as frequency range broadcast 540 - 1750 kHz.
  • Price in first year of sale
  • 23.95 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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