________________________________________________________

Molti schemi di circuiti intreressanti 

________________________________________________________________________________________________________________

Una miniera di circuiti da autocostruire

http://konstruktor.ha5khc.hu/linkgyujtemeny/linkgyujtemeny.htm

________________________________________________________________________________________________________________

http://www.keelynet.com/sources/schema1.htm

________________________________________________________________________________________________________________

http://web.ticino.com/celsius/SCHEMI.HTM

________________________________________________________________________________________________________________

www.webalice.it/crapellavittorio/

________________________________________________________________________________________________________________

http://zpostbox.ru/index.html

sito russo 

________________________________________________________________________________________________________________

www.elecircuit.com

________________________________________________________________________________________________________________

http://www.circuitstoday.com/

________________________________________________________________________________________________________________

 http://www.ilprogettista.it/web/

________________________________________________________________________________________________________________

________________________________________________________________________________________________________________