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1. [Amps] Fw: airspaced C's (score: 1): Author: "ON5KM" <on5km@planetinternet.be>; Date: Tue, 23 Dec 2003 18:28:50 +0100; Hi , is it possible to see on the spacing between the plates in an air spaced variable C howmuch the maximum usable voltage is ???? tnx 73 de ON5KM Stef ______________________________________________; /archives//html/Amps/2003-12/msg00351.html (6,782 bytes)
2. Re: [Amps] Fw: airspaced C's (score: 1): Author: Karl-Arne Markström <sm0aom@telia.com>; Date: Tue, 23 Dec 2003 18:50:20 +0100; Hello, A conservative estimate is 1200 V peak per mm plate spacing. It is however dependent on the finish of the capacitor plates, and if the edges are properly rounded. 73 and Season's Greetings/ Ka; /archives//html/Amps/2003-12/msg00353.html (7,472 bytes)
3. Re: [Amps] Fw: airspaced C's (score: 1): Author: R.Measures <r@somis.org>; Date: Tue, 23 Dec 2003 13:09:16 -0800; ** Ste4f -- I find out how much with a high-potential breakdown tester. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listi; /archives//html/Amps/2003-12/msg00357.html (7,740 bytes)
4. Re: [Amps] Fw: airspaced C's (score: 1): Author: Tomm Aldridge <KD7QAE@ARRL.NET>; Date: Tue, 23 Dec 2003 21:17:15 +0000; And then run at 1/2 of what you get 'cause humidity, dust and altitude all contribute to breakdown!!! Tomm, KD7QAE R.Measures wrote: ** Ste4f -- I find out how much with a high-potential breakdown te; /archives//html/Amps/2003-12/msg00358.html (8,269 bytes)
5. Re: [Amps] Fw: airspaced C's (score: 1): Author: R.Measures <r@somis.org>; Date: Tue, 23 Dec 2003 13:32:48 -0800; ** The main thing is choose a Tune-C with less breakdown-V than the bandswitch - so that during a glitch the Tune-C will breakdown first and protect the more-delicate bandswitch. ____________________; /archives//html/Amps/2003-12/msg00360.html (8,795 bytes)
6. RE: [Amps] Fw: airspaced C's (score: 1): Author: "George K. Watson" <watson@sierracmp.com>; Date: Tue, 23 Dec 2003 14:37:27 -0700; The altitude effect is large. I live at 2500m and I have gone to almost all vacuum variables. George K. Watson K0IW And then run at 1/2 of what you get 'cause humidity, dust and altitude all contribu; /archives//html/Amps/2003-12/msg00361.html (8,606 bytes)
7. Re: [Amps] Fw: airspaced C's (score: 1): Author: Tomm Aldridge <KD7QAE@ARRL.NET>; Date: Tue, 23 Dec 2003 22:11:46 +0000; GREAT hint! I think this needs to be considered in tuners as well. Both Dentron and MFJ units I have had smoked the inductor switch which was a pain to fix when a sacrificial gap could have been prov; /archives//html/Amps/2003-12/msg00362.html (9,598 bytes)
8. Re: [Amps] Fw: airspaced C's (score: 1): Author: "Phil Clements" <philk5pc@tyler.net>; Date: Tue, 23 Dec 2003 17:48:56 -0600; breakdown-V than the breakdown first and A trick Henry uses when the tune C is a vacuum variable, or a bread-slicer with a higher breakdown rating than the bandswitch, is to install a variable C betw; /archives//html/Amps/2003-12/msg00365.html (8,755 bytes)

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