Hi,
welcome to tubes.
what do you want to measure?
plate current, transconductance, noise, shorts, life of tubes, mu?
Type of tubes you want to measure are very popular and a good vendor can give you all the tests if required and match them too with a minimal fee.
If you want to start trading in tube market you do need a very good tube tester.
Tube testers are not all the same and do not measure everything unless you buy something more sophisticated at a cost.
Vintage Tube testers are indeed risky and most propably need service and calibration.
welcome to tubes.
what do you want to measure?
plate current, transconductance, noise, shorts, life of tubes, mu?
Type of tubes you want to measure are very popular and a good vendor can give you all the tests if required and match them too with a minimal fee.
If you want to start trading in tube market you do need a very good tube tester.
Tube testers are not all the same and do not measure everything unless you buy something more sophisticated at a cost.
Vintage Tube testers are indeed risky and most propably need service and calibration.