SHUTTER_TESTER

Published:2009/6/28 21:03:00 Author:Jessie | From:SeekIC

Shutter speed tester combines frequency counter, crystal oscillator, and photo-transistor-operated gate generator. Oscillator pulses are counted as long as the shutter is open. Reset is automatic at the instant the shutter opens.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Electrical_Equipment_Circuit/SHUTTER_TESTER.html

Print this Page | Comments | Reading(3)