dodger916
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- Aug 29, 2007
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I noticed the two right hand EL84s (viewed standing behind the amp) were red plating last night. I installed JJs from Eurotubes, and though I requested 20's, they sent me tubes with a "32" rating. I called, and they said those were right for the amp. I find it a bit odd that only the two right-hand tubes were redplating. Is this indicative of something else?
So I want to do the bias mod. I picked up a 100k 1/2 watt resistor, and I've seen pics of which resistor to replace.
Two questions:
1) Is 1/2 watt correct ?
2) Does anyone have a photo or instructions of the adjustable bias mod (76k resistor and 50k bias pot)? I've read the posts, but I'm a "visual" learner and like to see pics.
Thanks again!
So I want to do the bias mod. I picked up a 100k 1/2 watt resistor, and I've seen pics of which resistor to replace.
Two questions:
1) Is 1/2 watt correct ?
2) Does anyone have a photo or instructions of the adjustable bias mod (76k resistor and 50k bias pot)? I've read the posts, but I'm a "visual" learner and like to see pics.
Thanks again!