giovedì 30 luglio 2009

12 db low pass filter

This is a simple low pass filter, using 2 standard npn transistor.
This filter can works also at 5 volt and it's good for microporecessor based project.
The filter can self oscillate and it's a proget I've made with Peppo at L.E.P. laboratory in Milano.
Let me know if you made some modification.