Secure lock circuit (CD4017) schematic

Posted on Mar 28, 2007

Circuit as shown by the two and four decimal counter CD4017 password switch composed by the output terminal of the key switch logic combination of components to another feature of the electronic code switch.

Secure lock circuit (CD4017) schematic
Click here to download the full size of the above Circuit.

Circuit is simple, and only two CD4017 four password input keys.

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