Method and apparatus for converting electrical signals

Details Method and apparatus for converting electrical signals Method and apparatus for converting electrical signals

H - Electricity

04

B

325/110

H04B 1/26 (2006.01) H04N 7/16 (2006.01)

Patent

CA 1042077

METHOD AND APPARATUS FOR CONVERTING ELECTRICAL SIGNALS Abstract of the Disclosure A converter for converting the frequencies of input signals in one of a number of channels to frequencies within a predetermined channel includes a first mixer for raising the frequency of the input signals so that signals within a selected channel are raised to a supervideo channel, and a second mixer for lowering the frequencies of signals within the supervideo channel to a predetermined television channel. The first mixer is a balanced, push-pull circuit, and incorporates a varactor oscillator which is controlled by pushbutton adjustment of a d.c. potential to oscillate at a selected frequency above the supervideo band.

291788

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