Members Cibyl Posted October 9, 2011 Author Members Share Posted October 9, 2011 I had this issue on my AD30 and it was an internal fuse. I know, not much help but good luck with getting it back up to speed Can't find anymore fuses. The HT and the other one (I'm assuming the slow-blow) have been swapped out. Nothing looks burnt or charred on the inside,...looks good. Gonna try another set of power tubes. Link to comment Share on other sites More sharing options...
Members ~Abstract~ Posted October 9, 2011 Members Share Posted October 9, 2011 I thought OP mentioned swapping all of the tubes and fuses? He said he changed "the tubes and fuses". But then later he mentioned changing all the preamp tubes. Why mention that if he already did it? That lead me to believe that op only changed pre's since he didn't specifically mention power's. He's also not responded to either inquiry. Link to comment Share on other sites More sharing options...
Members BigBone Posted October 9, 2011 Members Share Posted October 9, 2011 If you know how to use a meter carefully check for voltage off of the rectifier. Link to comment Share on other sites More sharing options...
Members nakedzen Posted October 9, 2011 Members Share Posted October 9, 2011 How long have you had the amp? It could have a habit of blowing fuses. My Mako does that, there's nothing wrong with the amp but it blows the mains fuse occasionally when I turn it on. Link to comment Share on other sites More sharing options...
Members madryan Posted October 9, 2011 Members Share Posted October 9, 2011 How long have you had the amp? It could have a habit of blowing fuses. My Mako does that, there's nothing wrong with the amp but it blows the mains fuse occasionally when I turn it on. You could probably fix that easy enough using a big capacitor to buffer the supply. Link to comment Share on other sites More sharing options...
Members Weathered Posted October 9, 2011 Members Share Posted October 9, 2011 How long have you had the amp? It could have a habit of blowing fuses. My Mako does that, there's nothing wrong with the amp but it blows the mains fuse occasionally when I turn it on. If your Mako is occasionally blowing fuses, something isn't right. Either you're using the wrong sized fuze, or there's something shorting internally. Fuses don't "burn out" like lightbulbs do. Link to comment Share on other sites More sharing options...
Members madryan Posted October 9, 2011 Members Share Posted October 9, 2011 If your Mako is occasionally blowing fuses, something isn't right. Either you're using the wrong sized fuze, or there's something shorting internally. Fuses don't "burn out" like lightbulbs do. Could be enough current fluctuation in the amp on startup to pop the fuse. Especially if he's using fast blo fuses. Link to comment Share on other sites More sharing options...
Members nakedzen Posted October 9, 2011 Members Share Posted October 9, 2011 Could be enough current fluctuation in the amp on startup to pop the fuse. Especially if he's using fast blo fuses. Yeah I contacted Andrew about it and he said I could just use higher rated fuses. But since I have a box of like 20 of these I haven't done that yet. It's not like it does that all the time, maybe once 2-3 months. Link to comment Share on other sites More sharing options...
Members '63-Strat Posted October 9, 2011 Members Share Posted October 9, 2011 Are you sure one of your bandmates or worse, one of your bandmate's friends wasn't messing with your amp? I've left my amp on standby before for sure, but not power on and standby on. Could it be someone was trying to use your amp and had it cranked without a speaker load? Link to comment Share on other sites More sharing options...
Members Cibyl Posted October 9, 2011 Author Members Share Posted October 9, 2011 How long have you had the amp? It could have a habit of blowing fuses. My Mako does that, there's nothing wrong with the amp but it blows the mains fuse occasionally when I turn it on. Bought the amp brand new 2 1/2 years ago. Never had an issue with it, rock solid, awesome amp. Tried a different set of power tubes, no luck. Fuses are all good, nothing burnt or charred on the inside,....looks clean. I'll email Bad Cat tomorrow. Link to comment Share on other sites More sharing options...
Members Cibyl Posted October 9, 2011 Author Members Share Posted October 9, 2011 Are you sure one of your bandmates or worse, one of your bandmate's friends wasn't messing with your amp? I've left my amp on standby before for sure, but not power on and standby on. Could it be someone was trying to use your amp and had it cranked without a speaker load? No chance. My band room is in my house -- none of my band mates would have been messing with it. Link to comment Share on other sites More sharing options...
Members Cirrus Posted October 10, 2011 Members Share Posted October 10, 2011 So did you change the power tubes? Link to comment Share on other sites More sharing options...
Members Zozobra Posted October 10, 2011 Members Share Posted October 10, 2011 A blown transformer (usually) smells really nasty FWIW Link to comment Share on other sites More sharing options...
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