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I picked up a VHT UL & I think it may have a bad set of tubes in it. I have a quad of 6L6 JJ's to throw in there, question is....Before I pull the chassis...is the bias pretty straight forward on these amps as in...put new tubes in my Weber Bias Rite sockets, warm up, adjust one (or more) trim pots...finished. What Ma and Plate voltage should I get with the UL? Thanks in advance. [img]/images/graemlins/scratchhead.gif[/img]