Ya, what do you all suggest for tube testers?
I’ve done some research, the Hickok 539c overpriced “holy grail” $1500. 2 transformers reportedly allows higher accuracy. +/- 5-10%
The Hickok 539b, $500-750. 2 transformers. Accuracy reportedly +/- 5-10%
Hickok 539a- not sure
Hickok 752- industrial version - 1 transformer, accuracy reportedly +/-15%
(Hickok) TV3 - TV7/TU7 - TV10 (sp) - Military versions, one transformer, accuracy reported +/- 15%
Then many other brands, Eico, Stark, B & K, etc.
Just not sure how to sort through them for a reliable machine that will test all the different types of tubes we roll in audio
Under $500 ??