oscillator =3D A circuit which provides smooth, excellent well filtered = DC power supply =3D A unit which provides pink noise and hum, almost no DC relay =3D spark transmitter smoke =3D common phenomenon in the three words above good construction =3D unknown word resistor =3D inductor capacitor =3D detonation Murphy's law =3D true fuse =3D a component often protected by semiconductors pcb =3D a place likely to find oxides and breaks Sorry for taking your time. I just had to get it out ! Attila - SM4RAN -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body