rottingcorpse":1epkw8yx said:
Real deal vintage tube testers are way cheaper off eBay. You just have to learn to use them.
I own one from right after World War 2. I agree. One can find one that is not working cheaper. Send it to alltubetesters. Roger is not cheap but does great lasting work and is an authority on tube testers. I think he even has machinery and can duplicate old parts that don't exist anymore.
With this said, these testers will not match tubes. Some of them do offer matching, but it is at 250 volts which is useless to us guitar amp guys. You need a maximatcher for matching, period. Or do your own matching in your amp. I have rotated tubes, marking the ma of each one with a piece of tape to match them into quads. It's a pain in the ass.