Anyone in Boston area have a tube tester to loan?
I recently bought about twenty 6n23p (6922) preamp tubes from a Russian store online. I would like to measure what shape they are really in.
Does anyone in Boston area have a tube tester they would be willing to loan, or help me test these tubes with? I am interested if these online stores actually sell decent stuff, or is it all just junk?
Any responses are appreciated,