Members FWAxeIbanez Posted January 12, 2006 Members Share Posted January 12, 2006 so I finally got my "poor mans plexi" in today and I'm checking it out, besides some scratchy pots, it seems to be ok... except when I boost it with a clean boost the volume cuts in and out... I looked in the back and the power tubes turned bright blue... boosting it was on of the last things I did, so I thought maybe it was just something that got aggravated with time, but as soon as I disengage the boost it works fine... are the tubes Fubar'd? Link to comment Share on other sites More sharing options...
Members FWAxeIbanez Posted January 12, 2006 Author Members Share Posted January 12, 2006 bump Link to comment Share on other sites More sharing options...
Members 1big1 Posted January 12, 2006 Members Share Posted January 12, 2006 have you tried more than one boost pedal? maybe it doesn't like that one too much. i'm thinking that if you try a second one and the same thing happens that if could be some other component like a resistor or cap that's overloading. my bet would be on caps since they go bad over time. do you know much about the history of that amp? the yba-1 is about 80 per cent plexi circuit. if the caps are bad.. why not take it to a tech and have it modded to plexi specs? Link to comment Share on other sites More sharing options...
Members FWAxeIbanez Posted January 13, 2006 Author Members Share Posted January 13, 2006 any clue on how much that would cost? The thing is, I just got it... the guy who I bought it from didn't seem to know too much, and he originally wanted 900 dollars for it... so I talked him down, waaaay down... I'm thinking I might be able to get him to pay for it, but I was thinking it was more of a tube problem... the more I think about it tho, wouldn't having problems once boosted indicate a preamp tube issue? I dunno, I'm also thinking output section, but to be honest I'm not an expert on tube amp topology (or any kind of amp for that matter) and only know what I've picked up in the couple years I've been playing Link to comment Share on other sites More sharing options...
Members FWAxeIbanez Posted January 13, 2006 Author Members Share Posted January 13, 2006 there is a lot of noise as well... does that help at all? seems more like a preamp tube problem... agreed? maybe I'll take it to the local shop and swap some tubes around Link to comment Share on other sites More sharing options...
Members FWAxeIbanez Posted January 13, 2006 Author Members Share Posted January 13, 2006 Originally posted by FWAxeIbanez there is a lot of noise as well... does that help at all?seems more and more like a preamp tube problem... agreed? maybe I'll take it to the local shop and swap some tubes around Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.