All the pass transistors test good. No shorts to ground or from emitter to collector.
The positive terminal of the diodes has 0 ohms to the negative terminal of the power supply. I'm sure it's the diodes; the capacitor and regulator had hundreds of ohms across them. Bob M. ====== --- Kevin Custer <[EMAIL PROTECTED]> wrote: > > >> His failure is hardly due to running the supply > right at its maximum > >> continuous rating. > >> NEXT? > >> > > > > <---I would submit that metal migration within the > diodes was a > > factor in their failure. (I first heard about this > when I worked at > > TRW in the 1970's and RF power transistors were > still kinda "new") > > > > > http://www.ridgetop-group.com/docs/prognostic_techniques.pdf > > I'd guess it isn't the diodes, but is one or more > Pass Transistors shorted. > > Just a guess.... > > Kevin ____________________________________________________________________________________ Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.