Can happen, but the better 300B usually lasts about 5 years or 8,000 hours in my systems @ 5 hours a day.
If you have WE 300B's you have a 5 year pro-rated warrantee.
If you have WE 300B's you have a 5 year pro-rated warrantee.
compliments
Considering the 300B tube is highly regarded for longevity, am I expecting too much for a rather expensive tube to last more than 13 months under occasional use? Tube vacuum went flat & started arcing.