Don't know squat about testers. Looks like it would be a good idea for me to have one given I buy vintage/used tubes which will include power tube in the future. I'm basically looking for feedback on a Best Buy rank tube tester. Don't want a Phil Jones priced tester but don't want junk either. Basically something that will get the job done with a decent level of reliability and confidence. Something for common instrument power and pre tubes. So make, model, and ballpark price would be good - and other comments that should be considered in buying one. Looked in FAQ, did a search and some isolated stuff but no thread specific so thought I'd post one and take whatever heat's coming. If nothing else, maybe this will compile most of the scattered info in one thread. Thanks in advance.