Testing tubes

Neer

Member
Messages
12,583
I've got a few dozen miniature tubes and power tubes that I'd like to sell, but I have no way of getting readings on them--at best I can see if they work or are microphonic.

Would it be worth getting a tube tester for the purpose of selling maybe a few hundred dollars worth of tubes? What are the alternatives?
 

johnhager25

Member
Messages
227
I had the same question at one point and someone suggested to get in with the Ham radio clubs, they still use tubes and someone or one of the shops my have a tester. I also thought about contacting one of the shops or a eBay seller that has a tester to see it they would test them for a small fee. I'm interested in some Mullard 12ax7's (you can PM me).
 

71strat

Member
Messages
9,291
Brent Jessee will test tubes on a Tektronix Curve Tracer, and a single ended, self biasing class A amp for $15 per tube.

The Curve Tracer Testing is $5 per tube, and Noise Testing in a circuit is $10. $15 for both tests.
 




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