4015 Ch= 40

Fairbanks, Morse & Co.; Chicago (IL)

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  • Year
  • 1935/1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 245493
    • alternative name: FMC
    • Brand: Welco

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz; 1 AF stage(s)
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110V, 60Hz Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 4015 Ch= 40 - Fairbanks, Morse & Co.;
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Notes

  • The Fairbanks Morse 4015 is an AC operated, 4 tube BC band receiver. Has a regenerative second detector in place of the usual IF amplifier.  A small variable coupling capacitor between the plate and the grid coil determines the amount of regeneration. Alignment procedure located in Riders Volume 7, page 7-2.

    Band Frequency Ranges are as follows:
    BC Band......................540 - 1720kHz

    NOTE: 40 is the chassis number and NOT the model number.

    The following models use the 40 chassis and schematic:

    Model Number Chassis Cabinet
    4015 40 Table Model

    Other Notes:

    "Radio Retailing" November 1935 - new models - means that at least early October the sets were ready. The majority must have been sold for Christmas. The following upright table models were offered as new: 4015, 5619, 6616, F-M 7117, 9018, 4115, 6416 and "down-to-the-floor construction" consoles 5645, 6645, 7146, 9047 and 9048 plus the battery model 6445B. The first digit tells the number of tubes. Plus models 11049 and F-M 11050 with 11 tubes. Fairbanks-Morse called its new loudspeaker and AF technique "third dimension tone".

  • Price in first year of sale
  • 24.95 USD !
  • Circuit diagram reference
  • Rider's Perpetual, Volume 6 = 1935 and before
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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