M-31 (32 volt)

Lafayette Radio & TV Corp; New York (NY)

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  • Year
  • 1937/1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 46003
    • alternative name: Wholesale Radio

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 32 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6.5 inch = 16.5 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: M-31 - Lafayette Radio & TV Corp; New
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 11 x 14.75 x 8.25 inch / 279 x 375 x 210 mm
  • Notes
  • The model Lafayette M-31 in this catalog no. 68 is for the 32-volt power systems in the countryside. It has a push-pull output and 3 tuning bands with a complete coverage from 18 to 550 meters: BC 540 - 1710 kc, "Amateur" 1700 - 5500 kc and "Foreign" 5.6 - 16.5 mc. 5" illuminated airplane-type dial with a three-color scale, each band individually calibrated, vernier ratio is 12:1. Variable tone control (the schematic does not reveil it).

    List price for this M-31 is $ 46.90, Lafayette price $ 23.45. See details and summaries for the Lafayette catalog no. 68.
    There are different models M-31 in different catalogs. Same designation in the catalog but they are quite different models.
  • Price in first year of sale
  • 23.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before
  • Literature/Schematics (1)
  • Lafayette Radio Catalog (Lafayette Spring and Summer catalog no. 68 for 1937, page 106 and Lafayette catalog no. 69 for 1938.)

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