Pre-Selector 1930

Lafayette Radio & TV Corp; New York (NY)

Data
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Collections

  • Year
  • 1930/1931
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 66661
    • alternative name: Wholesale Radio

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF without regeneration; 2 AF stage(s)
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 105 - 125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Pre-Selector [1930] - Lafayette Radio & TV Corp; New
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 19 x 8 x 12 inch / 483 x 203 x 305 mm
  • Notes
  • The Lafayette Pre-Selector has a copper plated steel chassis for minimum resistance. Four gang single dial control with completely shielded stators. Choke and field coil for power supply. The volume control is part of the antenna bridge circuit. Linear power detector with plate rectification. A voltage of 300 is employed and a high resistance between cathode and ground gives an automatic variation of grid voltage depending on the strength of the input signal. Band pass filter with pre-selector. Utah Stadium Dynamic Speaker, producing from 20 to 6000 cycles. Resistance coupled first audio stage and a transformer coupled push-pull output stage. Lafayette writes about "the new 1930-31 Lafayette Pre-Selector Reciever".

    It was delivered as chassis with the Balanced Impedance Utah Stadium Dynamic Speaker for $ 45.25 (list $ 105.00) or with comlete set of RCA Radiotrons and Aerial Equipment for $ 56.78 (list price $ 131.50). See picture details and see details and summaries for the models of this catalog 1931 (season 1930/31).

    The "Radio Collector's Guide 1921-1932" from Morgan E. McMahon shows on page 185 for 1929 the model "Preselector" and for 1930 the "Duo Symphonic" and the AC524 plus on pages 262/263 (for 1931/32) the models "Tru-Test" (5 tubes), "Lafayette" (6 tubes) and 10 tubes, a no name chassis, a SW converter (3 tubes), a 5 tube Superhet and a 7 tube Superhet without name - all under Wholesale Radio Service Co. Ltd. instead under Lafayette.
  • Price in first year of sale
  • 57.00 $ !
  • External source of data
  • Ernst Erb

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