[R-390] Tube testers

[Richard]

> Guys tube testers are for wimps...

Hmmm, I have a tube tester for checking used "unknown" tubes before I stuff 
them in a radio to make sure a shorted tube doesn't let the smoke out
somewhere else.

I also have a Tek 576 curve tracer that can run up a set of curves on a tube
with a little external 
wiring.  Not very practical but fun to play with.  Does that make me an
alpha-wimp? :)

73 de Richard W5SRB