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.
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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.
Thanks Paladin for the info. I don't know how my thread title got changed.

The tube in question is not WE, tho it's not far off in price. Just out of warranty @13 months. I know for about seven months they only had 10-12 hours/week at most. To be honest, after sending the pair of tubes back to the mfr, I kinda thought they would make good on it. I think pride of product would warrant a one month grace. Especially on flat vacuum. But no. Even more confusing was the five months the tubes sat in their back room until I decided to rattle their cage and find out what was going on.

Thanks again

Regardless, it's the best thread I've ever seen!



What make is the tube? You should name names... nothing gets a mfr moving to keep their good name like the prospect of a little negative publicity. Tubes can loose their vacuum due to manufacture defects (maybe a bad batch that others bought) so it's to their advantage to act favorably towards you. Nothing's perfect and things break - but 13 months is not a fair exchange for the price.

BTW Nrchy, a wonderful observation!