Mica is a sheet silicate mineral little or no carbon present. Bruce > On 11 February 2019 at 11:15 Bob Bownes <bow...@gmail.com> wrote: > > > > > > Yes, those brown roughly 1" square caps used intact sheets of mica as > > dielectric. You can easily split the mineral into uniform, thin, > > transparent sheets. > > Beware inclusions that will make the surface rough and change the behavior, > particularly breakdown voltages. > > > The reconstituted caps are still around - used in high power RF circuits > > (mica has really low loss, but high epsilon) and in Tesla coils (a sort of > > special case high power RF). Most of them are surplus Russian/Soviet. > > > Hmm, mica is pretty much hexagonal version of graphite/carbon/diamond created > when there is a large axial force and the proper temperature. It is > synthesized for many uses today, I’d be very surprised if precision high > voltage caps was not one of them. > > That being said, thanks for the insights into the 5061A/B. Now I feel the > need to go power mine up! > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there.
_______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
