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DragonSarc · 12-22-2008, 04:14 AM

I replaced all my tubes from eurotubes this summer and only been played the TSL 100 amp no more than 20 hrs off and on with my attenuator no more than 4 hrs per play with vpr on and sometimes off, it was biased at 80 , now my amps volume decreased i checked the bias again and my multi meter is saying 30mv? ive switched the power tubes and pre amp tubes around and still the same, do you have to rebais the amp during winter cuz its colder? the bais shouldnt change once its set right unless the tube goes bad right?

12-22-2008, 04:14 AM	#1 (permalink)
DragonSarc Senior Member Join Date: Jun 2008 Location: San Leandro, CA Posts: 499	rebais during winter? I replaced all my tubes from eurotubes this summer and only been played the TSL 100 amp no more than 20 hrs off and on with my attenuator no more than 4 hrs per play with vpr on and sometimes off, it was biased at 80 , now my amps volume decreased i checked the bias again and my multi meter is saying 30mv? ive switched the power tubes and pre amp tubes around and still the same, do you have to rebais the amp during winter cuz its colder? the bais shouldnt change once its set right unless the tube goes bad right? __________________ JVM410H w/ 1960 Vintage A & 1960 Lead B Valvestate 2000 AVT 100 W/ JJ tesla Hi-Gain Preamp Gibson LP studio faded mahagony w/ Burstbuckers Pro V MIJ ESP Edwards Les Paul w/ Duncan JB and 59's Fender American Strat w/ Noiseless Vintage pups LTD EC-500 Jackson Stealth Pro MIJ