Hi In a run-away oven situation, the solder generally looks a lot worse and the board is a lot closer to black than chocolate brown. Best guess - that magic tantalum isn’t up to the job they are trying to make it do.
Bob > On Jun 13, 2016, at 6:32 PM, Skip Withrow <skip.with...@gmail.com> wrote: > > Hello time-nuts, > > Well, broke out a PRS10 that I had put away for a project some time ago and > upon power up found that it had issues. Status indicated low lamp output > and high lamp temperature. Duh! Upon removal of the lamp assembly it > became abundantly clear that the magic smoke had gotten out. > > If I recall correctly, seems like there was another PRS10 with corrosion > issues in the same area. My guess is that the heat does not help this > situation. I suspect that I may have a full-on heater, which may have > caused the tantalum cap (and possibly other) failures. > > Looks like this may be the weak spot in these oscillators. I'm very > hopeful that a rebuild will bring it back to life. > > Thought you would enjoy the pictures though. Two are attached. > > Regards, > Skip Withrow > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=oa-2322-b> > Virus-free > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=oa-2322-b> > <#DDB4FAA8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > <prs10-1.jpg><prs10-2.jpg>_______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.