Hey hal2000, the italic reference is from the movie/book 2001 A Space Odyssey (Arthur C Clarke) which is were the HAL2000 computer ran/controlled the space ship (Dave was trying to get back inside the space ship and HAL wouldn't open the door (pod bay) for him to come in, Dave was piloting/flying (in space) one of the ships small pods). I was just wondering if that's were you got the name (handle) hal2000.
The MDRT transformer replacement (my understanding) is not to difficult/hard to do. And it comes with good instructions. It is also an upgrade making your MP1 better (but does cost more than an original replacement).
I agree with you about the tone cloning/digital modelling, I like the older gear (particularly tube) and these days (it seems) I'm very "old school".
Ok, so you have good stable 220v from the wall outlet (power point), MJMP was trying to rule that out as the cause/problem because it was easy to check/test.
Next he will probably get you to check the various voltages of the transformer outputs. Once you/we work out the problem, we can then work out the solution