Tube Testers. Which to buy and where?


I'm hoping I can afford a tube tester, used. I'd love to be able to test output and input tubes, 6550, KT88, EL34, etc.
I've no idea how much they go for. I've looked on A-gon here, but I've no idea if these are worth pursuing or junk.
I'd even consider new if new could be had for a few hundred, or preferably much less. Then again, I'm thinking if they were that cheep, maybe everyone would want them?

Any input is appreciated.
Thanks,
David
rolloff
Cadet1,

I'm looking for a tube testor as well. Especially for 12AX's and 12AU's. I'll help you get it out of your garage. What do you want for it?
I think the TV-7s are cool looking. I used to see a lot on Ebay.

I bought a simple to use B&K Dynajet 606 on Ebay last year for $50. It has served me well.
I have a B&K 650 Dynaquick out in the garage. I used to use it to test 6550 and small signal tubes but have no more tube equipment. It did a good job. matching sections of dual triodes such as 12AX7 etc.I would love to have it out of the garage.
Anybody know anything about a unit labled NRI Professional?

I bought it lately at an antique mall.

Thanks
Woody
The B&K 747 is a solid state unit that is easy to use and tests all the later tubes (50s on up). They can be found for $300 or less depending on condition.
Thanks Mae.
A couple of hundred to $1,400 plus is quite a range. I'll look.

David
TV-7 and have it calibrated by Dan Nelson in Arizona. I've had Hickoks and the TV-7's (I've had a couple of them) are my favorite. You might want to check EPay (EBay), but they don't run cheap anymore. Couple of hundred to about $1,400+ within the last two months.