OK Josh, is this just a line level pre-amp or more of a serious driver? How much of a resistive load do you think it will look like at min. and max. drive conditions? Is it OK for it to build up over a few seconds or will that hurt your other biasing needs? Is your 340 volt DC source from a full wave bridge and a filter cap unloaded? Or lightly loaded?
Joe

[This message has been edited by JoeTestingEngr (edited 10-04-2006).]