My 1974x amp is quiet when nothing is plugged into it, but as soon as I plug my intrument cable into the non-tremolo channel, I get this awful cyclic noise. Does anyone know what to do? I replaced the ECC83 tubes one by one (testing it between each tube replacement), but it didn't fix the problem.
Here's a video of my problem.
I've owned my code 50 for about a year and a half now and I've never had any problems with it. Yesterday I was playing and after a while it just died, not that it just wasn't giving out any sound, it just didn't have any power. The display wasn't on, the lights on the buttons weren't on and my foot switch wasn't on. I made sure the power lead was plugged in, I tried using a different wall socket and I changed the fuse in the plug but nothing is working. Does anyone have any idea what it could be/how it can be fixed?
I was just playing my Epi on the Acoustic setting and all sound went out and the screen and buttons started flashing. Tried pluggin/unplugging. Pluggin into a different outlet. What the hell just happened?