A-512 "Prince" Ch= 477 tube 12SK7

Air King Products Co.; Brooklyn (NY)

  • Year
  • 1947–1950
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 126907

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • AC/DC-set / 105-125 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: A-512 "Prince" Ch= 477 [tube 12SK7] - Air King Products Co.;
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Dimensions (WHD)
  • 10 x 6 x 6 inch / 254 x 152 x 152 mm
  • Notes
  • Color: ivory painted bakelite. Also called simply 512 (w/o A). Similar to A-511 (brown). Similar to CBS Columbia model 512. Same case as Air King 4706 (1946). Riders shows a dial lamp, Beitman (CBS) shows no lamp. Label depicts a 12BA6 in place of the really fitted 12SK7.

    Dial lamp featured.

  • Net weight (2.2 lb = 1 kg)
  • 2.270 kg / 5 lb 0 oz (5 lb)
  • Price in first year of sale
  • 21.95 $
  • Source of data
  • - - Data from my own collection
  • Circuit diagram reference
  • Rider's Perpetual, Volume 18 = 1949 and before
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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