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EL 34 30W ultra linear
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Old 24th November 2004, 11:57 AM   #71
cogsncogs is offline cogsncogs  United States
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Location: Wayne, West Virginia
I just had one of my JJ's go bad on me 2-nite after abouute 8 mos. I was hoping I had a bad socket. No such luck. Good thing I had a bakup JJ! Pretty much matched with the others, almost dead on; not even worth mentioning the diff. @theduke, if you decide to go with JJ E34L's be prepared to adjust your bias quite a bit. They take less bias voltage than an EL34. Higher gm. Also it's a good idea to re-bias your amp after a couple of weeks or so, tube break-in. Dang now a light bulb blew, jeez! Scary! I think I'd better get outta here before the CRT blows in my monitor! What is it with me and vaccum tubes/bulbs/valves tonight?

Wayne
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