Are you going to PAY $chaeffer, or just buy the company ??? :^P What are the 'little' pots like the BBD delay time ??? (trimmers ?) H^) harry "JH." wrote: > http://www.oldcrows.net/~jhaible/matrix_fx/jh_matrix_fx_front_unfinished.pdf > > My latest DIY project, obviously EMS-inspired. > > JH.