12H090 (not 12HO90 !) Ch= 11C21 late (6SB7Y)

Zenith Radio Corp.; Chicago, IL

  • Year
  • 1946 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 135978
    • alternative name: Chicago Radio Lab

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

 Technical Specifications

  • Number of Tubes
  • 11
  • Main principle
  • Superhet with RF-stage; ZF/IF 455/8300 kHz
  • Wave bands
  • Broadcast, Short Wave plus FM or UHF.
  • Details
  • Changer (Record changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 12H090 Ch= 11C21 [late ] - Zenith Radio Corp.; Chicago,
  • Shape
  • Console with Push Buttons.
  • Notes
  • The price in the Radio Retailing March 1946 is $288.-- - for the early model "Zenith 1946" with the converter 6SB7. The model "late" has a converter 6SB7Y and maybe other technical change - see Rider's schematic page 15-91 & 92 with suffix "late").
    Operating Frequencies:
    BC 540 to 1600kc
    SW 9 to 12 mc
    FM1 42 to 49 mc
    FM2 88 to 108 mc.

    Record Changer: Zenith Model S-11680.
    The model was introduced in "Radio & Television Retailing", August 1947, page 45 as Zenith 12HO90 (letter O) instead of 12H090 (number 0).
  • Circuit diagram reference
  • Rider's Perpetual, Volume 15 = 1947 and before
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

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