Ir-Controlled Remote A/B Switch Circuit

Posted on Oct 2, 2012

Useful for A/B control, the IR receiver shown controls a relay from an infrared beam that has a pulsed tone-modulated signal. Ql is the photo receptor feeding op amp IC1, tone decoder IC2, and flip-flop IC3.

Ir-Controlled Remote A/B Switch Circuit
Click here to download the full size of the above Circuit.

IC5 turns off the indicator LEDs after about 15 seconds.

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