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More bias troubles with Treasure Black bottle tubes.....I give up

I have been trying the Treasure black bottle KT66 for the past couple of weeks and comparing to the Gold Lion Kt66.
Unlike the GLs, the bias has been jumping around quite with the Treasures and I have been adjusting regularly. Figured it was the long breaking these tubes required. The adjustment was always upward (more bias needed, I would check them and they would be at 25ma and I would crank them back up to 30ma). Finally I ran out of bias adjustment room on valve 4 could not get it past 25ma). Took the tube out and it tested weak. Tested the others and they tested weaker also. This is after only maybe 100 hours of use. They were all near the end of the bias adjustment. Took them out and replaced with the GLs. Had to turn the bias way down from the top of the range where it had been with the Treasures.
Did I mention that one of the original quad was dead (white getter) when I first bought them home and had to be replaced?
Not sure what is going on but I have had it with these Treasure tubes. I ate the loss on the KT120s from Racheal, but these are going back to PartConnexion.
I liked the sound of these a lot (maybe even more than the Gold Lions but it is close) but can't stand dealing with unreliable tubes. I have never had a problem with the grey glass Psvane KT88 tubes or the Penta Labs KT88, or my quad of Treasure 6CA7, don't know why quality is slipping at the Treasure plant.
Regardless, I can not recommend any Treasure black bottle tubes. Too bad, they did sound good but the quality is crap. What a joke considering what they charge.




Edits: 09/24/16

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Topic - More bias troubles with Treasure Black bottle tubes.....I give up - Mendel 19:35:53 09/24/16 (9)

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