I just wanted to give you all an update and a reminder. I tried both of the NOS 6JU8's in my Sylvania roundie, that my tube tester showed a dead short in the same position, which kind of gave me doubts about my tube tester. . . I still had color bars but the color would lock in if I "de-tuned" the set a bit. I contacted my tube seller and he was great and sent 2 more out at no charge. The tubes that arrived were a different brand. 1 tested fine, and the other showed a short in the SAME position. I tried the one that tested fine, and the color was perfect!!!! Locked in and no color bars. So...... my reminder to you is that you should test ALL tubes in your sets to eliminate any problems, AND test the NOS ones that you purchase from your provider. Just because they are new, don't assume that they are good. I won't doubt my B&K in the future! By the way.... were 6JU8's known to be crappy tubes?!?
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