Silvertone J Ch= R4433

Sears, Roebuck & Co.; Chicago (IL)

  • Year
  • 1928/1929
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 57333
    • Brand: Silvertone

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 25 cycle chassis possible, normal 60 cycles, 4 taps: 95; 105; 115; 125 Volt Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Silvertone J Ch= R4433 - Sears, Roebuck & Co.; Chicago
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • This Silvertone model J was made by King Mfg. Corp.

    The Sears model Silvertone E, 80, 81, F (R4430), 82, Power pack 82, J (R4433, H (R4432) have been made by King Mfg. Corp. and the schematics are shown in Gernsback page 207 to 209.
    See also the King model J. See details and summaries about Sears catalogs etc.

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 3 = 1933 and before

 Collections | Museums | Literature

 Forum