Re: Marshall JMP Plexi 50-watter from '68
Actually I have yet to find a schematic/layout picture that fully matches either of my 50-watters ('67 and '68). They're both bass versions (model 1986) and while they surely don't differ that much component-wise from their lead counterparts - or even from the early 1970's models - it would be nice to see a very early (that is, late 60's) JMP50 Plexi schematic, provided that there even is one online somewhere. Also the service manual MajorNut1967 mentioned about is definitely of interest.
Can someone shed a little light on these matters?