Air Castle AP2122 Ch= KD

Spiegel Inc. (Continental); Chicago

  • Year
  • 1939/1940
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 59302

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 456 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast (MW), Police, sometimes also early TV (75-200m).
  • Power type and voltage
  • Line / Batteries (any type) / 110 - 120 AC or DC / 6 & 2 x 45 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Air Castle AP2122 Ch= KD - Spiegel Inc. Continental;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 14.5 x 9.25 x 6.25 inch / 368 x 235 x 159 mm
  • Notes
  • Built in loop antenna.
  • Price in first year of sale
  • 21.50 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 12 = ca. 1941 and before
  • Literature/Schematics (1)
  • Riders 12-28

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