9A Chassis Only

Fairbanks, Morse & Co.; Chicago (IL)

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  • Year
  • 1937/1938
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 39931
    • alternative name: FMC
    • Brand: Welco

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

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 9A [Chassis Only] - Fairbanks, Morse & Co.;
  • Shape
  • Chassis only or for «building in»
  • Notes

  • The Fairbanks Morse 9A is an AC operated, 9 tube BC and SW band chassis. Has dual drive high and low speed tuning using 100:1 and 20:1 ratio's with silent tuning between stations.

    Band Frequency Ranges are as follows:
    BC Band......................530 - 1700kHz
    Police Band.................1.62 - 5.5MHz
    SW Band.....................5.4 - 18.2MHz

    NOTE: 9A 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: Production changes were made to the 9A chassis and are documented in the changes section of Riders volume 10, page 10-1.

    The following models use the 9A chassis and schematic:

    Model Number Chassis Cabinet
    9AC-4 9A Console Model
    9AC-5 9A Console Model
  • External source of data
  • Ernst Erb
  • Source of data
  • - - Manufacturers Literature
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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