On Thu, Sep 8, 2011 at 2:03 PM, Electron wrote: > > I am afraid I will have to use the "emitter to input, base to ground and > output from collector pulled up" scheme (is there a better name for it? := ) > ) > Grounded Grid? Oh, wait, 21st century :) I think that one is a "common base" configuration. Barry --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .