Silvertone 1722X

Sears, Roebuck & Co.; Chicago (IL)

Data
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  • Year
  • 1933/1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 55924
    • Brand: Silvertone

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

 Technical Specifications

  • Number of Tubes
  • 12
  • Main principle
  • Superhet with RF-stage; ZF/IF 175 kHz
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Silvertone 1722X - Sears, Roebuck & Co.; Chicago
  • Shape
  • Console with any shape - in general
  • Notes
  • The two speakers are 8 and 12 inch. There is also the same cabinet and probably chassis as "revised" model Silvertone 1722 and there is a model Silvertone 1722 without revision. We do not know yet the differences between the revised 1722 / 1732 and the 1722X. Rider's shows all three seperately. One 6B7 serves for the "Flasher", the other for the AVC. The 56 is the oscillator - with problematic short wave capabilities. Push-pull output. The revision is mainly for a better short wave sensibility with a 78 resistance-capacity coupled IF stage added and the 37 detector and 37 first audio replaced by a 85 tube which does the same functions. The ON-OFF-switch is a duplex for allowing shorting out the added IF when selecting the broadcast band. Rider's shows us 3 separate schematics - and we reflect that with 3 models.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Literature/Schematics (1)
  • Riders 4-29, 30

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