Which Tube Tester


I am looking for a tester for KT88s, EL34 & 6sn7 being relatively new to the tube circle, I am looking on ebay for a tube tester, but am unsure which one to bid on.

I am only really interested in these three types of tubes for now the testers seem to go for $10-$300. I will not be spending the $300 but if there is a brand and model number someone would suggest I would be grateful.

Thanks
(Ozzy Sorry if this the wrong forum again)
punkuk
I came across these two testers

http://www.vacuumtube.com/toppage31.htm

www.maximatcher.com

I think bother tester are new products whereas most only tester Ebay is over 30 years old.

I have no experience with them but the Maxi-Matcher look good.
What about the AT1000? Isn’t this a prima tester for audio use?
http://www.amplitrex.com/at1000.html
A B+K 650 will do the job for you on all your tubes.
I am also pretty sure the earlier 500 + 550 will do all as well. I havn't used my 500 for a while and it is at home and I'm not.
They eariler ones are Tube regulated not Soild state.

You also want to get one that tells you the Transconductance (gm) value of the tube, such as the ones I mentioned.

Try to stay away from just emmission testers.

Here is a very good link for B+K testers: http://tone-lizard.com/B%26K.html

Another one to get you up to speed on Tube Testers:http://tone-lizard.com/Tube_Testers.html
I have a B&K 607 with manual for $47.50 plus shipping. If interested, contact . Works great.