This is the full schematic of the circuit Full size: http://img443.imageshack.us/img443/9292/fulltheremin.png It didn't work on the first try. A theremin is an electric instrument which emit a ...
I have an IR LED which is switched at a rate of 32.768kHz from an oscillator circuit (relevant portion shown below). I have 10 prototype PCBs. 30% of them work while the others don't. The problem is ...
I have tried a while to understand how the 555 chip is built, I opened the datasheet of TI available here : http://www.ti.com/lit/ds/symlink/lm555.pdf anyway this is the scematic from the datasheet ...