[TenTec] Centurion

[Ken Brown]

A couple of other questions:

If I were to connect filament voltage ONLY to some tubes that have been 
in stroage for a long time, would it be okay to do so without proper air 
flow around the tubes? In other words, is the heat generated by the 
filaments alone enough to damage the seals without proper air flow?

And, since running filaments at or slightly below nominal voltage saves 
filament life, could I "clean out the gas" in a shelved tube effectively 
with a filament voltage substantially lower than the specified voltage?

DE N6KB