SIDETONE_MONITOR

Published:2009/7/11 2:38:00 Author:May | From:SeekIC

Mostek MK5086N IC is used with crystal in range from 2 to 3.5 MHz as signal generator driving FET audio amplifier.Switch S1 gives choice of four AF tones, determined by dividing crystal frequency in hertz by 5120 for T1, 4672 for T2, 4234 for T3, and 3776 for T4. Can also be used as code practice set and as audio signal generator.-J. Garrett, A Sidetone Monitor-Oscillator-Audio Generator, QST, June 1978, p 43.



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