Silvertone 1904A

Sears, Roebuck & Co.; Chicago (IL)

Data
Forum
Pictures
Collections

  • Year
  • 1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 56007
    • 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 175 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / Either 25 cycles, 110 to 120V or 50 to 60 cycles, 110 to 120 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone 1904A - Sears, Roebuck & Co.; Chicago
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 11.5 x 15.3 x 8.5 inch / 292 x 389 x 216 mm
  • Notes

  • The Sears Silvertone 1904A is an AC operated 6 tube BC, Police and SW band receiver.

    Band Frequency Ranges are as follows:
    BC Band (Band A).............540-1600kHz
    Police Band (Band B)........1.58-5.10MHz
    SW Band (Band C)............5.8-15.5MHz

    Uses variable inductive coupling of 2nd IF as volume control.  Minor production changes made as listed in Sears Service Manual and Rider's 7-14.  Chassis and schematic used in this maodel also used in models 1904, 1906, 1908, 1911, 1914, 1938,1954, 1964, 1964A and 1984.

    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).

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 6 = 1935 and before

 Collections | Museums | Literature

 Forum