[Amps] Rejuvenating glass power tubes

[W0YR at aol.com (W0YR@aol.com)]

Rich,

I have had gassy tubes rid themselves of gas.  At first I did not know what 
that low, rough, intermittent sound was.  I didn't know beans about this 
until I cabbaged onto a book by Henri Le Petomaine, F2ART.  When this process 
begins, shack ventillation should be increased.  

Try it.