Five uses tri-state logic audio pen CD4066 555


Posted on Mar 28, 2007

As shown in Figure five uses tri-state logic pen audio circuit. The circuit mainly by the multivibrator, four-way switch CD4066 (IC1) circuit with some RC com


Five uses tri-state logic audio pen CD4066 555
Click here to download the full size of the above Circuit.

ponents consisting of other components. Wherein the multivibrator 555 (IC2) and R7, R8, R9, C1 constituted by the oscillation frequency off IC1-3 state control.




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