Members charliedango Posted September 30, 2006 Members Share Posted September 30, 2006 Do any of you people who are telling bluesboy not to use a 12AU7 in his Valve Jr even own one or are you just going off of your vast knowledge of assumption?The 12AU7 works great with the Valve Jr. Especially if you're throwing pedals in front of it. I know from experience. Link to comment Share on other sites More sharing options...
Members mc5nrg Posted September 30, 2006 Members Share Posted September 30, 2006 Originally posted by kcanostubes Hopefully you don't believe everything you read on the internet. It IS true that it will lower gain. The point is, will it lower it too much? In most amp situations it will. The only time I've seen 12AU7s work in guitar amps or pedals is in EXTREMELY overdriven stages. l]http://www.kcanostubes.com/content/newsletter_details.asp? ArticleID=4 [/url] Maybe I should look again, but I'm pretty sure my Univox 1226 is full of them. Link to comment Share on other sites More sharing options...
Members BluesMan60 Posted September 30, 2006 Members Share Posted September 30, 2006 Originally posted by mc5nrg Maybe I should look again, but I'm pretty sure my Univox 1226 is full of them. Maybe, but then the question becomes, was the amp designed to use 12AU7s? If so, that's an entirely situation than putting 12aU7s in an amp designed to use 12AX7s. Link to comment Share on other sites More sharing options...
Members FearTheVoices Posted July 3, 2007 Members Share Posted July 3, 2007 Im using a 12au7 for the loop tube in my 78 JMP Link to comment Share on other sites More sharing options...
Members sonnyg84 Posted July 3, 2007 Members Share Posted July 3, 2007 1. At 20% of the gain of a 12AX7, a 12AU7 in an amp with a single 12AX7 in the gain stage will probably not not even be useable.2. I clearly do not charge enough for my NOS tubes. I was selling vintage 50's blackplate 12AU7's for $18 each new......... I sure could have used your advice earlier, I e-mailed you but never got an answer. I called the Tube Store but the guy on phone hadn't a {censored}ing clue what a Marshall DSL was; I ended up getting 4 Tung Sol 12AX7's from the Tube Depot and 2 of the 4 were bad. Link to comment Share on other sites More sharing options...
Members Paul J. Edwards Posted July 3, 2007 Members Share Posted July 3, 2007 Im using a 12au7 for the loop tube in my 78 JMP So what has that got to do with the price of tea in China? Link to comment Share on other sites More sharing options...
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