These look interesting & $38 incl shipping. I'd be inclined to check this out before MFJ..
https://m.ebay.com/itm/High-Voltage-Air-Variable-Capacitors-20-95pF-Amplifier-Tuner-REPAIR-DIY-/161247381436 73 Josh W6XU Sent from my mobile device > On Jun 16, 2018, at 7:34 PM, K9MA <[email protected]> wrote: > > I searched far and wide for high voltage air variables a year or so ago for a > tuner. I needed some quite specific values rated up to about 1 kV. The only > place I could find them was Surplus Sales of Nebraska. They weren't cheap. > > 73, > Scott K9MA > > >> On 6/16/2018 20:30, rich hurd WC3T wrote: >> I bought a Cardwell 500PF 3.5KV on eBay last year. As a bonus I discovered >> that it had a reduction drive when I opened the box. :) >> >> Not sure if it fits your requirements - it's pretty ratty looking, and was >> obviously pulled from some electronic equipment. I sort of resigned >> myself to needing to 'spiff it up'. >> >> Keep your eyes open on eBay, that's the best advice I can offer. >> >>> On Sat, Jun 16, 2018 at 8:05 PM Dauer, Edward <[email protected]> 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:[email protected] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [email protected] > > -- > Scott K9MA > > [email protected] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
