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Switches circuit diagrams

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CMOS Toggle Flip Flop Using Push Button
August 8, 2010

The below uses a CMOS dual D flip flop (CD4013) to toggle a relay or other load with a momentary push button. Several push buttons can be wired in parallel to control the relay from... [more]

CMOS Toggle Flip Flop Using Laser Pointer
August 8, 2010

The IR photo transistor Q1 (Radio Shack 276-145A) or similar is connected to the set input (pin 6). The photo transistor should be shielded from direct light so that the voltage at the set input... [more]

Sel 8 Sources Relay

April 25, 2010

Sel 8 Sources Relay [more]

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