Skylab
Reviewerus Prolificus
I have had only good experiences with Brendan at Tubeworld, as well. He's expensive, but his tubes are the real deal.
XCalibur, I think a 19K Gm for a 5998 is not out of the question, but very few tube testers are rally super-precise anyway. At least it would seem you got a strong tube!
XCalibur, I think a 19K Gm for a 5998 is not out of the question, but very few tube testers are rally super-precise anyway. At least it would seem you got a strong tube!