Marshall Model #1987 JMP Lead Year1968 Serial NumberS11225ModelSeries #1987 JMP LeadWatts50CabinetHeadFolders Amp Archives Marshall 50 Watt Models Model #1987 LeadModel #1987 JMP Lead 1968 SN S11225 10Images One thought on “1968 Marshall Model #1987 JMP Lead” I now own this is’68 JMP50 model #1987, SN11225. Filter & bias supply caps have been replaced (main filter had just started to weep electrolyte). New filter caps conditioned by current limiting. Telefunken EL34’s replaced with NOS Valvo branded matching date code (1962, October, 3rd week) Mullard xf2 double halo getter EL34’s. The mains IEC socket that had previously been fitted has been replaced with original type Bulgin 3 prong socket. I’ll later try updating this folder with pics etc. Cheers Log in to Reply Leave a Comment Cancel replyYou must be logged in to post a comment.