The worse part was that the first time I checked the bias several days ago, the first tube measured as expected but the next tube I checked and adjusted showed very high bias. Hence, the battery's voltage changed sufficiently between checking the first tube and the second tube to throw the readings off. So I never thought about the battery.
Today's bias check showed all tubes reading high which made me suspicious.
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Digital W4S DAC-2v2SE, W4S Recovery powered by Uptone Audio LPS-1, OPPO BDP-105; Office: iFi micro iDAC2 Home Office: iFi nano iDSD with iPurifier2
Analog Rega Planar 2 (original) heavily modified; Benz Micro Ace; Aesthetix Rhea phono pre-amp
Pre-amp/amp Audio Research REF 5SE, Audio Research REF 150, Martin Logan SL3s, Shunyata Research power cords throughout
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