1 tubwompus 6 years ago My world is a plethora of extremes on some levels.F'rinstance, I score a Fender Custom Vibrolux Reverb for NUTHIN'! Awesome, right?Wayulp, certainly no complaints here, except for nature's delicate balance being kept intact by way of issues that the CVR has manifested.First, there's the hiss for which she's so notorious. Unrecordable w/ the hiss. Negative feedback loop installed puts that fire out.Mine also decided to start randomly imitating a pan of bacon on the stove. Li'l burps of static-y stuff. "Hmmm...scorched backside of a power tube... prob'ly not a good sign."Slingshot-like snap upward into the plus side of extremes: I have a bud who's a world-class amp tech. Eric Johnson (Eric's what?) just dropped an amp off at his place yesterday, in fact.I took this rig to him a couple months ago. He's doing the work gratis so if it takes a year, I don't care. I actually feel bad for him because HIS lesson in, "No good deed goes unpunished." is that after doing the necessary stuff to address the issues, that little imp of an amp is now randomly humming and my bud can't find out why. He has it on a bench, always powered up and hooked up to a scope and such so he can analyze the circumstances under which it shows up but so far, no joy. He's traced every connection on the board, etc.,...nothin'.He said Zinky's approach to the design is no help. In my buddy's words: "I'd like to meet up with Zinky, buy him a steak, and then blast 'im in the face."