Members Guitin Better Posted July 20, 2008 Members Share Posted July 20, 2008 I was playing along and my amp (Rocktron Rampage R50C) started making a high pitched whistling sound. If I turn it off and wait a few seconds before turning it back on the whistle is gone for a while but it comes back. I plugged into my old faithful Fender 25R Frontman and there was no problem so the issue has to be with the Rocktron. Any ideas? And, if I may, please try to avoid helpful suggestions like "Rocktron is a piece of {censored} . . . you need to get a {insert amp manufacturer of preference here}". Thanks! Link to comment Share on other sites More sharing options...
Members Guitin Better Posted July 21, 2008 Author Members Share Posted July 21, 2008 bump Link to comment Share on other sites More sharing options...
Members docjeffrey Posted July 21, 2008 Members Share Posted July 21, 2008 It looks like a cool little amp. Does it have a fuse that's about to blow? Link to comment Share on other sites More sharing options...
Members Girvinator Posted July 21, 2008 Members Share Posted July 21, 2008 It's just another H34 circumferlating valve problem again.. Link to comment Share on other sites More sharing options...
Members Guitin Better Posted July 21, 2008 Author Members Share Posted July 21, 2008 It looks like a cool little amp. Does it have a fuse that's about to blow? Yeah, it's been a good little amp for rehearsals and such. It's surprisingly loud and has great clean/chorus and dirty sounds. I have no idea if a failing fuse could cause this problem. It's a loud squealing sound. Link to comment Share on other sites More sharing options...
Members steve_man Posted July 21, 2008 Members Share Posted July 21, 2008 It could also be your power supply going bad... Link to comment Share on other sites More sharing options...
Members Guitin Better Posted July 22, 2008 Author Members Share Posted July 22, 2008 I talked to an electronics repair shop that works on Rocktron and he said it sounds like something is overheating. His price to fix it was going to be more than the amp is worth. Anyone have ideas on how to identify the faulty component? Link to comment Share on other sites More sharing options...
Members benzem Posted July 22, 2008 Members Share Posted July 22, 2008 I have a vox valvetronix with a similiar personality. My tech couldn't get it to happen in shop. he probably didn't even try cuz he knew he couldn't fix it anyway. sell it cheap with full disclosure Link to comment Share on other sites More sharing options...
Members Guitin Better Posted July 22, 2008 Author Members Share Posted July 22, 2008 I was messing around with it last night and found that I could create the problem by wiggling a certain wire that went into the amp section of the box. Because I'm an idiot I decided to take the whole thing apart thinking I might find a loose connection that I could solder and quickly solve my problem. I didn't find anything obvious (I kinda knew I wouldn't) but I got the amp put back together and it still works. Oddly, the squealing sound has not occurred since I performed this surgical procedure. When I was inside I wiggled some wires and reseated some plug connections. Maybe something wasn't making good contact. I'm not crazy enough to think I fixed it. We'll see how long this lasts. Link to comment Share on other sites More sharing options...
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