Or does this not matter due to it being a cathode bias? Admittedly my RV50 always has matched quads. Me: Did you even bias it before swapping the tubes around.Ĭonsidering this dude builds amps for a living, I am a little dumbfounded.Īlso, are matched tubes really that important? I mix my tubes around in my R30 and never bother about matched or even same brand.
Me: Dude, I'm not sure why you put an E元4 in the first time considering you knew it would blow. Third time I drop it off (already paid for it so insisting he fix it properly). That is too high for these tubes so I removed the quad and put in two 6CA7s (despite him replacing the blown EH-E元4 with another EH-E元4). "When I first put a new tube in I noticed that the plate voltage is about 750. "Yep it was a blown power tube so I put a new one in and put a new fuse in"
I took a 1970s Eminar 100w amp to be repaired as it was blowing fuses. That amp tech sounds like one I went to recently.
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