The Mellotron Group

Here's a guy (Ryder Duncan AKA Squonk06) obsessed with making M-Tron digital samples of MK-II Violins sound like M400 Violins.  He describes a complex three layer, four band, two self parametric EQ process.  This processing might actually work.  It sounds like it does.  Kinda hard to believe that Les Bradley dicked around with EQ to this extent back in 1970.   

http://ryderduncan.com/themusicalbox/?p=33&cpage=1#comment-7

Here he is playing M-Tron "violins - 1" (MkII violins) 
http://www.youtube.com/watch?v=6YDijelNipw&feature=related

This guy has tron-OCD and clearly needs a real M400.  :-)