Самый простой сварочный.

Сделал сварочный с сайта "Паяльник "
http://forum.cxem.net/index.php?/topic/125708-%D1%81%D0%B0%D0%BC%D1%8B%D0%B9-%D0%BF%D1%80%D0%BE%D1%81%D1%82%D0%BE%D0%B9-%D1%81%D0%B2%D0%B0%D1%80%D0%BE%D1%87%D0%BD%D1%8B%D0%B9-%D0%B8%D0%BD%D0%B2%D0%B5%D1%80%D1%82%D0%BE%D1%80/