Sound activated flip-flop circuit based op-amp
This circuit is a digital flip-flop whose output will change to a compilation controlled using sound. Therefore the input used is a condenser mic because … Read more
Misc
Audio Controlled Mains Switch Circuit
This is the Audio Controlled Mains Switch diagram circuit that is most useful for audio or video equipment, where the device can be turned off … Read more
Slot Car Race Referee Circuit
Make this optoelectronic critic and end ever those squabbles over who actually won the competition. Install Q1 and Q3 phototransistors at the end position, exactly … Read more