I'm curently modding my Marshall 2266c following the directives of Twango ( thanks a lot Twango

The mods are already done but i can't find any shematics of the preamp section of the vintage modern on internet ..It would be helpfull for me because i would like to know the différences between this and the marshall 1987x .
If someone could help me

Ps : The results with the mods are great, more suited to my taste, i feel it sound more like a Marshall know and less Fenderish
