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Tunaverter 1450

Tunaverter 1450; Tompkins Radio (ID = 379070) Converter
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Tunaverter 1450; Tompkins Radio (ID = 379070) Converter
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Country:  United States of America (USA)
Manufacturer / Brand:  Tompkins Radio Products; Refugio Texas
Year: 1968–1975 Category: Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
Semiconductors (the count is only for transistors) 2:
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.
Power out
from Model: Tunaverter 1450 - Tompkins Radio Products;
Material Metal case
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.

Model page created by Ernst Erb. See "Data change" for further contributors.

All listed radios etc. from Tompkins Radio Products; Refugio Texas
Here you find 9 models, 2 with images and 7 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.