Pair of 5U4GB tubes that test 60-58/40 & 60-60/40 on my TV-7D tester (calibrated 1/27/24). Brand new tubes should test 62-62/40 or higher. Tested for shorts, emission and noise.

These tubes are dated LS, or March 1960. They have Black plates and D-getters. They test slightly below expected NOS values but show no signs of use and came with a large lot of NOS tubes. They still test very close to expected new values. I believe these to be slightly lower testing new old stock tubes.

The glass envelopes are slightly tilted off center. This is purely cosmetic and does not affect their function. See the pictures for condition and ask questions. I do not accept returns unless the items are not as described.

I’m in the process of listing thousands of tubes. If you want something in particular message me to see if I have it. Thanks!