My power amp ARC VT 100 keeps blowing tube


My ARC VT100 MkI keeps blowing tubes on V16. Been using Genalex Gold Lion KT88 and it has only 200 hours on it. I replaced it and it blew again.

Any idea why this keeps happening?
danieljoseph

Showing 1 response by bifwynne

Dan, I'm sure Jea means well, but I have read that bias the VT100 is NOT for amatuers. The bias pots are dangerously close to some potential fatal high voltage rails.

In fact, I know one tube outlet that refuses to sell power tubes to owners of ARC VT 100 amps. No names please. I would call ARC and ask for the closest ARC authorized tech station and let that person take it from there.

Good luck.