TV-101 Early

Mallory, P.R. & Co.; Indianapolis, IN

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  • Year
  • 1952 ?
  • Category
  • Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
  • Radiomuseum.org ID
  • 349726

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 60 Hz, 110-120 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: TV-101 [Early] - Mallory, P.R. & Co.;
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Notes

  • With germanium or silicon point contact diode as UHF mixer. This converter has classic styling and it was one of the very first UHF converters. It was a very popular model. Converts US-UHF Channals 14-83 into US-VHF Channel 5 or 6, uses the Mallory Inductuner, OEM Production with Type/Brands: Arvin 3000, Alliance AC-80, Sylvania C33M, CBS-Columbia, Silvertone 6950 (Sears, Roebuck & Co.), Sparton, Mall-Ex, Crosley DU-UHFP, Sutco 23A.

    Later that same year, a 2-tube chassis version Mallory TV-101 [Late] was manufactured. The later circuit also uses the 6AF4 oscillator and 1N72 or 1N82 mixer, followed by a 6CB6 IF amp, with a selenium rectifier stack (instead of the 6X4) for high voltage.

    Note that the 3-tube Early version has a S/N less than 200,000; the 2-tube Late version has a S/N 200,000 and above.

     

  • Author
  • Model page created by Rene Chenier. See "Data change" for further contributors.

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