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Marshall Schematics
In the beginning, and the making of a Legend

The JTM45:
image  1962 Blues Breaker Reissue

JMP Super Lead 100-Watt Model 1959 - Year 1970
image  JMP Super Lead
image  JMP MKII Super Lead
image  1959T Tremolo Super Lead (the Infamous amp#39 fact or myth?)

18watt Tremolo & Lite - Year 1965:
image  18watt lite
image  18watt Tremolo

Just a note, if you are searching for a Plexi Schematic, first you should know that this is a term created not by the company
but from a community of Marshall enthusiast, and over the years it has been a name that has stuck to a particular model and year.
basically it is a model 1959 pre 1970.

JMP 50watt Model 1987 - Year 1970:
image  1987 JMP Lead 50watt
image  1987 MKII JMP 50watt
image  JMP Preamps from 1970ish

JMP Model 2203/2204 - Year 1970ish:
image  2203 JMP Master Volume Lead 100watt
image  2204 JMP Master Volume Lead 50watt

JCM800 Model 1959 - Year 1981 & 1988:
image  Lead Power Amp 100watt year 1988
image  Lead Pre Amp 100watt year 1988

JCM800 Model 1987 - Year 1981 & 1988:
image  Lead Pre Amp 50watt year1988
image  JCM800 MV Lead Power Amp ALL year1981
image  2203 MV Lead Pre Amp ALL year1981

JCM800 2204 Master Volume With Cascaded Preamp - Year 1988:
image  50watt Power Amp
image  100watt Power Amp
image  50watt Preamp
image  100watt Preamp
image  My 2204 Old School DIY Layout & BOM

JCM800 Lead Preamps ALL Models - Year 1981:
image  JCM800 Lead Preamps

Model 2205 JCM800 Split Channel Reverb - Year 1983 & 1988
image  Pre Amp year1988
image  Power Amp year1988
image  4210 Combo year1983
image  CA 3046 3045 IC

Studio 15 - Year 1986 & 1987:
image  Studio 15 4001 year1986
image  Studio 15 4001 year1988

Artist Hybrid - Year 1986:
image  3203 Artist Preamp year1986
image  3203 Artist Tube Power Amp year1986

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