Tube tester...anyone own their own?

Where do you get a tube tester recalibrated?

I've used Roger a couple of times.  He does great work.  Used to have a local guy, but he passed away awhile ago.

http://www.alltubetesters.com/index.htm

I own, and like very much, the Amplitrex tester.  It is a modern design that is still in production.  It's ease of use is unmatched.  One chooses the tube type from a menu, and after a type is selected, the display tells you which socket to use.  The machine then warms up the tube before testing.  The screen showing the results displays the specification for the tube, which can be compared to test results, and also interprets the results as strong, weak, etc.  The tester measures emissions, transconductance, gas/leakage, and noise.  The Amplitrex tests at full power to stress the tube; this gives more honest results than the vast majority of units that do not stress test the tubes. A lot of tubes that test strong on a Hickok, for example, will not do as well on the Amplitrex.

For tube types not on the menu, the unit can be programmed to test such other tube types.  For really advanced users, it can be hooked up to a laptop and it will then curve trace the tube.  

The downside is, primarily, that the Amplitrex is expensive.

I too took the Amplitrex plunge. Yes is was expensive. Yes it was worth every penny. I couldn't live without it.

The bad news? A lot of the tubes we buy are not near as good as advertised. There is no ambiguity with the AT1000, it tells you exactly what you have. Few new production tubes I've bought even comes close to NOS.

Get headphones, plug them into the Amplitrex, gently touch the top of the tube with the eraser of a pencil. It's amazing how many tubes are microphonic.

I have five, i.e., Stark, Marconi, B&K, Heathkit, and a Western Electric KS-15750-L1 from estate of Alan Douglas who wrote The Book of Tube Testers and Classic Electronic Test Gear.

They are all sweet :)