above is my circuit picture about sound active light circuit...In the circuit has shown that the AC power supply 230V....izzit necessary to use AC 230V?? can i remove o replace it with DC?? if really do it, then what should i put to connect the board?? 3legs or 2legs plug ??
thanx for advice... i tink i will try to change d bulb to LED ,remove the D1 and change AC 230V to DC 9V , is there any problem will that?? so there will be two batteries...will it functioning?
beside that, the triac gt any positive o negative terminal?? if gt, how to differenciate which is positive n which is negative??