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Post subject: Blues Junior: EL-84 Groove Tube
Posted: Fri Apr 24, 2009 4:27 pm
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Hobbyist
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I bought a Blues Junior about 1 month ago (second hand) and am very happy with it. However, I've noticed that one of the EL-84 Tubes glows a LOT brighter than than the other. Does this mean it needs replacing?


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Posted: Fri Apr 24, 2009 5:25 pm
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It could be getting too much voltage. I'd swap the one that glows brighter with the one that doesn't and see if that one glows brighter. If it does, it's the amp. If it doesn't it's the tube.


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Posted: Sat Apr 25, 2009 9:43 am
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Aspiring Musician
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Since you purchased your amplifier second-hand (well done friend; it's a great amp!), it's probably reasonable to assume that the previous owner did not re-tube it before he sold it. Consequently, it's probably worth the $25 for a new set of EL84s. I bought a Pro Junior a little while ago and let me assure you that a brand new pair of EL84s made the amp sing. A lot of people might tell you that Groove Tubes (which are, in reality, re-labeled SOVTEKs) are crap, but I like them just fine. If you're looking for new preamp tubes, try Tung-Sols. They're cheaper than JJs and sound just as good, I believe.


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