Tunaverter 1450

Tompkins Radio Products; Refugio Texas

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  • Year
  • 1968–1975
  • Category
  • Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
  • Radiomuseum.org ID
  • 120479

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

 Technical Specifications

  • Number of Transistors
  • 2
  • Semiconductors
  • Main principle
  • RF Converter/Adapter (not voltage converter); ZF/IF 1500 kHz
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Wave Bands given in the notes.
  • Details
  • Converter
  • Power type and voltage
  • Storage and/or dry batteries / 9 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Tunaverter 1450 - Tompkins Radio Products;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 115 x 60 x 100 mm / 4.5 x 2.4 x 3.9 inch
  • Notes
  • The leaflet shows 7 models for different frequency ranges. The VHF radio converter models are 273 (26.9-30 MHz = CB-10), 308 (30-38 MHz), 375 (37-50 MHz), 504 (49.5-54.5 MHz = 6 M), 1450 (144-150 MHz = 2 M), 1828 Air Craft Model (118-128 MHz) and 1564 (150-164 MHz).
    The sales outlet for Tompkins Radio Products (TRP) is Herbert Salch & Co., Woodsboro, Texas.
    There is no connection with the receiver. The output is coupled via a short wire or resonate antenna, for instance with a coupling Loop 2.5 " in diameter fo #20 to 32 enamel wire C = 240 mmfd L = 18 turns for 1500 KC output or L = 34 turns for 830 KC output or L = 52 turns for 550 KC output.
    All VHF Tunaverters have a 3 section tuning capacitor. They were sold over several years - end date not known for sure.
  • Price in first year of sale
  • 30.00 $
  • Mentioned in
  • -- Original-techn. papers.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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