Monthly Archives: February 2011

Home made 555 timer from NPN and PNP transistors

Posted on February 22, 2011 by esalazar

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 … Continue reading →

Posted in Eletronics | 3 Comments