CLUTCH_COIL_FOR_TIMER_MOTOR

Published:2009/7/23 22:38:00 Author:Jessie | From:SeekIC

Start-and-stop signals are applied to stop jack, for automatic timing. Manual-timing pushbutton applies 0-v signal to stop jock, to make Q1 conduct. Fast switching rime of transistor permits reading time to within 0.005 millisec.-F. W. Kear, Electromechanical Timer for Lab Applications, Electronics, 36:7, p 78-79.



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