Home made 555 timer from NPN and PNP transistors

Before the 555 contest was announced I was reading the free online book 50 555 Circuits from talking electronics. I was very amazed with how much could be done with the 555 timer. So I decided the best way to understand the 555 would be to try and build one. First I looked at some … Continue reading “Home made 555 timer from NPN and PNP transistors”