Published:2009/7/17 1:42:00 Author:Jessie | From:SeekIC
Developed for syllabic VOX system used with Drake T-4XB and R-4B transmitter and receiver. Input is taken from 12.6-VAC transformer winding of power supply for Drake, so equipment power switch also turns off 5-V supply. - R.W. Hitchcock, Syllabic VOX System for Drake Equipment, Ham Radio, Aug. 1976, p 24-29.
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