Hi Everybody, I've just found this forum in my search for info on modding my old markIIB to IIc (or C+) specs. Can anyone give me info on how to go about it? I can read a schematic and handle a soldering iron but I'd love to get a detailed "how-to" on the conversion. I got this amp well used 30 years ago and it has been gigging hard all this time, 3-5 gigs every week, had a few falls but never let me down. Any help much appreciated.