[R-390] Tube testers and other babblings

[JAMES T BRANNIGAN]

You make a good point.  I have been a fanatic about collecting spare tubes,
so I  can have supply in depth.  But as I think about it, I have replaced
very few "bad" tubes.  Even transmitting tubes will last a very long time if
you don't abuse them.

Jim

> You don't have to go crazy stocking up on tubes.  Everyone seems to think
> that
> these darn things burn out like mad when if fact if you put a fresh set in
> they would last
> for many many years running 24/7.  I have seen original tubes in 60 and 70
> year old