In a message dated 14/08/2010 23:39:20 GMT Daylight Time, mfeher at eozinc.com writes: Not that it really matters for this thread, but, the 2N2222A was one of the most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP complement. - regards - Mike ------------------ Wasn't that exactly the point that was being made?:-) regards Nigel GM8PZR