Published:2009/7/11 3:11:00 Author:May | From:SeekIC
Switthing element is silicon controlled switch that approximates flip-flop, turning on when low-level positive pulse is applied to its base, and remaining on until turned off by negative pulse. Used us memory device to retain registered count until next input pulse makes bit transfer to following stage.-R.S. Reed, Rugged Arming Fuzing Timer for Atomic Artillery Missile, Electronics, 34:38, p48-51.
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