:: Aiming at making a +/-1kV output stage with reasonably low output :: impedance (around a few tens of k) using c.o.t.s. semiconductors :: andminimal quiescent current Would iGBT's be a better bet and easier to obtain than mosfets? Colin -- cdb, colin@btech-online.co.uk on 14/10/2010 =20 Web presence: www.btech-online.co.uk =20 =20 Hosted by: www.1and1.co.uk/?k_id=3D7988359 =20 =20 =20 =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .