MFJ sells butterfly capacitors. They are rated at 1.5 kV. 12-67 pF http://www.mfjenterprises.com/Product.php?productid=MFJ-19
18-136 pF https://www.mfjenterprises.com/Product.php?productid=MFJ-23 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 16, 2018, at 5:05 PM, Dauer, Edward <eda...@law.du.edu> wrote: > > With the tutelage of a friend I am putting together a mag loop but have had > no luck finding a source of air variable capacitors up to the task. Vacuum > variables aren’t hard to find, but the $200 and up price tag is offputting. > I have seen a couple of AVCs on E-bay that looked pretty ratty; and the > commercial types for sale new look like low-power trimmers. Anyone know of a > source -- or even have any they’d sell? Specifically I would like a range > of 6 to 120 pf or more, butterfly or split stator, with plate spacing > sufficient to take a kilovolt of RF. And ideally with reduction gear tuning > though that’s optional. > > Thanks for any info anyone can provide . . . > > Ted, KN1CBR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wun...@wunderwood.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
