hi thanks to ken, harry,yves, mark for thier replies. does anyone know the synths that used the following. 2sc2291 2sc1583 2n5458 2n2646 (moog modular----thanks yves) regards geoff james -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20050804/6001ac32/attachment.htm>