Californiaman Posted March 20, 2009 Share Posted March 20, 2009 OK you all know I love my little GA-5, but recently I'm noticing a drop in decibel level while playing. I'll strum it, get full sound, and then there's a noticeable drop. I'll strum or pick the guitar and there's a noticeable drop followed by a rise in volume again. It's weird. Seems like part of the volume just disappears almost cuts out and then comes back and then goes away. Anybody care to take a stab at it? Rich? Anyone? Link to comment Share on other sites More sharing options...
KSG_Standard Posted March 20, 2009 Share Posted March 20, 2009 My Marshall JTM exhibited the same symptom you describe, I replace the power tubes and problem fixed...this might be of some help... http://www.geofex.com/ampdbug/ampdebug.htm Link to comment Share on other sites More sharing options...
Californiaman Posted March 21, 2009 Author Share Posted March 21, 2009 Thanks Brother, I'm going to fire the amp up tomorrow and give it a good test drive. I also have noticed a slight pop or click at times when I'm turning up the volume. Replacing the tubes is probably a good idea. When I bought it, it was a floor model. And most importantly... it's under warrantee!! Link to comment Share on other sites More sharing options...
MikeRom Posted March 21, 2009 Share Posted March 21, 2009 This sounds like the same issue that you're having - http://forums.gibson.com/Default.aspx?g=posts&t=16199 Link to comment Share on other sites More sharing options...
Riffster Posted March 21, 2009 Share Posted March 21, 2009 It is most likely the power tube. EL84s are not robust tubes and their life is on the shorter end. They do not handle vibration all that well and using them in a combo obviously worsenes the problem. Link to comment Share on other sites More sharing options...
Californiaman Posted March 21, 2009 Author Share Posted March 21, 2009 Thanks guys. I'll take it apart either today or tomorrow, if not, I've got Wednesday off to look into it more. Link to comment Share on other sites More sharing options...
djroge1 Posted March 21, 2009 Share Posted March 21, 2009 Swapping tubes is about the only thing you can do that won't void the warranty. Link to comment Share on other sites More sharing options...
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