Do all tubes char inside when they die?


I have a Jolida 502B with Sovtek tubes, about 2-3 years old. I had a tube flare the other day (brightened and then dimmed), but didn't have noticeable effect so I kept it.

BUT, tonight a different tube flared bright red and stayed bright, bright red (all the metal in the tube, not just the standard spots)... the metal didn't cool until I manually shut the amp down. Scared the crap out of me (the top of the tube is blistered and inside is charred).

Is this normal? The tube doesn't sound horrible (I restarted the amp to do a sound check...probably stupidd thing to do).

Should I just replace the tubes or could this be an amp issue?

Thanks!
jc_audio

Showing 1 response by unclejeff

Trash the tube. End of discussion. Also, be very careful to watch for a while the replacement tube. Your tube is probably just worn out, but you never know for sure. Oh, did I say trash the tube?