Hum and Crack on DIST mode

[Jonar]

well better than a long speech i did this video to illustrate my MP1 problem.
https://www.youtube.com/watch?v=vywj7cNnpPU&feature=youtu.be
On Solid state mode, the sound sound very good, but on Dist mod buzz, crack and destroy sounds came out off the amp.
i ve plugged new tubes in  :???:
Any idea to resolve this problem?

[MarshallJMP]

So you have the same problem with new tubes.Mmmm seems like a power supply problem,maybe some wornout caps.
Now since you're from Liege and i'm from Hoegaarden maybe you can send it to me or come over to my place so i can check it out?It's only like 50km and a 30-40 min drive.

[Jonar]

well yes we can found an arrangement to ship or drop the unit  ;)

[MarshallJMP]

Okay,just tell me when you got the time?