Silvertone 1708 Worlds Fair Order= 57D 1708

Sears, Roebuck & Co.; Chicago (IL)

  • Year
  • 1933/1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 55909
    • 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 175 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone 1708 Worlds Fair Order= 57D 1708 - Sears, Roebuck & Co.; Chicago
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 14 x 16.5 x 9.75 inch / 356 x 419 x 248 mm
  • Notes
  • In Rider's volume 4 we find a Sears model 1708 on pages 4-10 (layout), 4-11 (schematic), 4-13 (circuit notes) and 4-14 (speaker data) for tubes 78 (RF stage), 6A7 (mixer), 78 (IF), 37, 75 (AF), 2 x 45 (output) and 80. In Rider's 5 there is information for the follower, 1708-A on page 5-61 (schematic) and 5-62 (different layout) with tubes 6A7 (mixer and osc), 2 x 78 (IF), 37 (2nd det), 37 (AF), 42 (output) and 83V. Sears catalog #167 Fall & Winter 1933/34 shows a model 1708 and 1709 with the following tubes: 6A7, 2 x 78, 75, 37, 2 x 45 and 5Z3.
  • Price in first year of sale
  • 34.95 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before

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