12B Chassis Only

Fairbanks, Morse & Co.; Chicago (IL)

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  • Year
  • 1938/1939
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 39862
    • alternative name: FMC
    • Brand: Welco

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 455 kHz
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / Either Transformer: 60Hz, 115V or 25Hz, 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 12B [Chassis Only] - Fairbanks, Morse & Co.;
  • Shape
  • Chassis only or for «building in»
  • Notes

  • The Fairbanks Morse 12B is an AC operated, 12 tube BC, Police and SW band chassis used in model 12BG.  Has AGC, push-pull audio output stage, tuning eye, push-button tuning, volume naturalizer and input jack that allows the use of an external phonograph. Also has 3 IF stages.

    Band Frequency Ranges are as follows:
    BC Band......................535 - 1725kHz
    Police Band.................2.20 - 7.2MHz
    SW Band....................7.00 - 23.0MHz

    NOTE 1: 12B is the chassis number and NOT the model number.  Please post pictures of the radio's on the appropriate radio model page and NOT to this page.

    NOTE 2: The Pre-War Console reference lists this model as having 4 bands, however the radio actually has 3 bands.

  • External source of data
  • Ernst Erb

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