I recently also made a decission on which tube tester to buy after reading and looking at multiable testers I decieded on a B&K 747B the reasons I choose this tester
1 easy to calibrate
2 lightweight
3 solid state no calibration tubes to buy
4 all different tube testers give readings in different values so you are looking not to match these values but to qualify the T.M.C. and tube life also look for shorts and grid emissions
5 but the real test is how do they sound I have tubes that do not test as well as others but outperform them in listening..
1 easy to calibrate
2 lightweight
3 solid state no calibration tubes to buy
4 all different tube testers give readings in different values so you are looking not to match these values but to qualify the T.M.C. and tube life also look for shorts and grid emissions
5 but the real test is how do they sound I have tubes that do not test as well as others but outperform them in listening..