I don't know how many times you are going to have to ask about the equipment you need. Cartoons won't fix it! LOL! Anyway, I found this thread right here at VK:
http://www.videokarma.org/showthread.php?t=261808
It has a few good brands and types. Personally, my cheapest emissions only tube tester is the only thing I have with crt adapters. It's an Accurate Instruments tester, but it tells me enough. I would like to have one of the nice Beltron or B&K jobs mentioned in the thread above. Also, you have been asking about a tube tester. I am a big Hickok fan of test equipment in general, but they can be pretty pricey. However, it will be about the best built unit money can buy short of ultra high end jobs I have seen in the $Ks. With old test equipment you may find yourself UN-wantingly getting into restoration of that, so don't go on Ebay and find just any tester with a sweet buy it now price. Find one that has a seller who knows (or seems to) his equipment and can verify any claims of repair and/or calibration. Make sure the model you choose will test the types of tubes that you are interested in. One from the 50s isn't going to do your Zenith.
I ran across a B&K Precision 747B that I think would be a relatively modern, solid state tester that covers a LOT of tube ground. I got lucky and found mine owned by someone who thought that tubes no longer existed, thus a tester was worthless. WRONG! This tester will cost you a C or two, but supposedly worth it. Simple to use and is Mutual Conductance and measures in (GM) micromhos. A story within it's self, but it's how good testers test.