• Year
  • 1932
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 33226

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superhet with RF-stage; ZF/IF 130 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8.5 inch = 21.6 cm
  • Power out
  • 1 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 228Q Batt. Chassis - Atwater Kent Mfg. Co.;
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 16 x 19 x 10 inch / 406 x 483 x 254 mm
  • Notes
  • for Cabinet 228; Photos not here, only at Cabinet 228 !

    NOTE: The last digit of an Atwater Kent model number represents the quantity of tubes it uses.  This applies only to the model numbers having 3 digits after the 90 series models.  Additionally, the model numbers ending with 0 or 1 or 2 use 10 or 11 or 12 tubes, respectively.  There are a few exceptions to this rule and the model 228Q is one of them having 7 tubes in lieu of having 8 tubes.  The other versions of the model 228 all use 8 tubes.

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

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