This circuit shows the methods of changing the operating frequency of astable LM555 timers electronically. Any source that can drive the base of transistor Q1 can control these circuits.
Thursday, September 10, 2009
Electronic Time Constant Control
This circuit shows the methods of changing the operating frequency of astable LM555 timers electronically. Any source that can drive the base of transistor Q1 can control these circuits.
Labels:
Fun Circuits
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