Hi Ed, Nope. I just brushed off the growth, and blew the whole assembly down with compressed air. The whiskers were huge! I think they were capacitively coupling with the ground bits, and since their size and number varied in an uncontrolled way, they affected the frequency in an unstable way.
These white cube shaped capacitors are something high quality. The white color is a porcelain glaze that protects the capacitor, and the wires seemed to be connected to some sort of sintered silver area on the body. -Chuck Harris Ed Palmer wrote: > That's not something I would have expected. Did you have to unsolder the > capacitors > to clean them up? > > Ed > > On 2016-08-18 10:00 AM, [email protected] wrote: >> My old 2.5A was acting up in strange drifty ways. I opened the oven, and >> found >> that all of the white cube shaped ceramic capacitors in the oscillator were >> covered >> with fuzz on the electrode ends. I am guessing that they were growing a >> great >> tin whisker beard. I cleaned it all off, and performance improved greatly. >> >> -Chuck Harris >> _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
