Hmmm my First post in this month. sorry for rare posting article cause my hard work at office admnistration. any comment please leave here, perhaps i will visit your blogspot.
Introduce First.. I'm interest with Electronic stuff, komputer, audio system, digital, microcontrolling. i think suitable with my study in informatic technology. When I young I playing electro toys such as , light flasher, alarm, water sensor. Here old scheme i got from Elektor since 1988
Scheme
PCB
try do it yourself
well good night, sweet dream.