[Boatanchors] Tube testing

[rbethman]

I don't put a whole lot of faith in the use of tube testers.

That having been said, I do have one of those that Hickok made for 
Western Electric.  It is the KS-15560-L1.

Having just brought home an HRO-50T1, how can you fiddle around and test 
tubes that are NOT on the charts?

Ones such as 6J7 and 6K7.

(At the moment I'm pretty sure that there aren't any of these in my 
assorted collection to try to swap one in for one.)

Bob - N0DGN