220_MHz_RECEIVING_CONVERTER

Published:2009/7/10 0:53:00 Author:May | From:SeekIC

A simple circuit using a single transistor converts 220 MHz to 144 MHz or vice versa, because the mixer is bilateral. T1 has 15 turns on the primary, and 2 turns on the secondary (#24 AWG wire) on a 0.375 ID SF-material toroidal coil.



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