Silvertone 1850 World's Fair Table Model Order= 57FM 1850

Sears, Roebuck & Co.; Chicago (IL)

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  • Year
  • 1934/1935
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 55988
    • Brand: Silvertone

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Number of Transistors
  • Main principle
  • Superheterodyne (common); ZF/IF 480 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Storage and/or dry batteries / 2 to 3 & -3 & -4.5 & 3 x 45 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone 1850 World's Fair Table Model Order= 57FM 1850 - Sears, Roebuck & Co.; Chicago
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 18.3 x 18.8 x 13.5 inch / 465 x 478 x 343 mm
  • Notes

  • The Sears Silvertone 1850 is a battery operated 5 tube BC and SW band receiver. Uses ballast tube 30.  Riders states a 480kHz IF but Sears Silvertone Service Manual 1928 thru 1936 states 175kHz IF.

    Band Frequency Ranges are as follows:
    BC Band.............545-1760kHz
    SW Band............6.0-15.0MHz

    Chassis and schematic used in this model also used in models 1850A, 1851, 1862, 1868, 1868A, 1870, 1921, 1931 and 7147, with some models combining the power switch with the tone control and thus having 4 knobs instead of 5.

    Catalog states: Airplane easy tuning dial.  Includes Three longer life Silvertone "B" Batteries and Improved 6-month Dry "A" Battery.

    Designed in the spirit of World's Fair architecture and constructed by master cabinet makers, with front of carefully matched walnut and Madrone burl veneers.  Remainder in Walnut finish. All batteries contained inside the cabinet.  Complete with tubes and batteries described above and aerial kit.

    Order number 57FM 1850 Cash Price $ 32.95.  See details and summaries about Sears catalogs etc. This model was manufactured for Sears by Colonial Radio Corp., Buffalo, NY (Sears Manufacturer Source Number Code 101).

     

  • Price in first year of sale
  • 32.95 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 5 = ca. 1934 and before

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