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 jea48

When was the last time you replaced the 6922 Driver tubes?
The VT100 MK1 and MK2 are not so easy to bias.

Courtesy of Abe Collins
http://mycollins.net/audio/artube1.html
To start click on picture to begin biasing procedure. Click on next picture for next step and so on until biasing procedure is complete.
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