LEAD IN Hello. I picked up a Fender Sidekick Reverb 25 a while back for a very nice price, and it needed a little fix (I think the reverb wasn't working, other than that it was fine). I got it working and replaced a few pots that were falling apart, two of which were the wrong type, since that's all I had at the time (linear instead of log, wrong but close resistance). At this point the amp worked fine, save a volume knob not doing much at all (it has a master, and it got louder than I needed in my bedroom, so that wasn't an issue). The other day I received some pots in the mail, so I switched them into the amp so the specs would be right, which fixed the volume knob problem. THE PROBLEM I'm not sure what happened, but now the amp is distorted using the speaker wire outputs. I've tried the speaker with another amp, and this amp with other speakers, so I know it's the amp, not the speaker. The headphone output sounds fine, Fender clean and all. WHAT I'VE DONE The only pots I replaced were the reverb, presence, and volume controls. I also jumpered a resistor next to the reverb pot so I could get more of a Ventures type wetness when turned all the way up, but switched back to a resistor to try to kick the radio that was coming in (which I'll switch out again, since I used a random resistor, and it didn't really get rid of the radio like I was hoping. Reverb sounds nice though). But I did this the first time around, before things started going wrong. Through all this there has been a little PCB damage from soldering, but only around the pot replacements. A couple wires came loose through flipping the circuit board over so many times, but I've soldered them all back into place as far as I can tell. I'm obviously not an amp tech, but I'd like to get to the point where I can diagnose and fix the problems I run into, and maybe more if things go that way. My soldering on the pots is darn near atrocious, especially since the PCB was breaking down as I was soldering, but since they're all working fine through the headphones, I don't think that's the problem. I haven't been able to find anything mentioning this problem. Does anybody have a clue what's up? I'm eager to learn, but sometimes I just hit a roadblock like this one and need some help. Any replies are greatly appreciated.