1 erick lopez 1 month ago Ive asked in a previous topic about why my amp was so loud and crappy sounding. luckily with the help of all of you I have been able to fix most of the issues regarding common problems faced when acquiring vintage amps such as this. So far its been: Leaky capacitors that needed replacing Replacing the old 2 prong ground wire with a modern 3 prong Incorrect Tubes (the common "black-facing" repair they do at Guitar shops) Removing the "mud" resistor on the normal channel of the amp These corrections have made a huge improvement on the amp, but Im still getting a high pitched noise coming from the amp at any volume. Im wondering what other common problems are there on these old amps that I can start checking? maybe the pre-amp tubes? they look fine but who knows. Anyway, thanks again for all your continuing help guys! Many times i get frustrated with it and want to sell the damn thing....but no way! I just love this amp and want it sounding the way it should.