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Total 5 documents matching your query.

1. [TowerTalk] Pl-259 Flash over voltage (score: 1): Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>; Date: Fri, 1 Dec 2006 19:19:56 -0500; The talk about breakdown voltage which is basically air across the space between the inner and outer conductors at the PL-259. Given LMR-400 has roughly 34 pfd per foot (23.9) or 230 pfd per hundred; /archives//html/Towertalk/2006-12/msg00046.html (8,002 bytes)
2. Re: [TowerTalk] Pl-259 Flash over voltage (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 01 Dec 2006 16:49:18 -0800; Why would the capacitance for 100 ft not be 100*the C for 1 foot? Something is weird here. But, even 1000 pF or so, when charged to 10kV, can make a fairly impressive spark. Energy = 1/2*c*V^2.. if V; /archives//html/Towertalk/2006-12/msg00047.html (9,483 bytes)
3. Re: [TowerTalk] Pl-259 Flash over voltage (score: 1): Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>; Date: Sat, 2 Dec 2006 00:46:06 -0500; Not at all. It's called short hand math. My professors had the same problem understanding it in college as you are seeing I drop the zero and you, or the reader is supposed to automatically put it b; /archives//html/Towertalk/2006-12/msg00052.html (8,163 bytes)
4. Re: [TowerTalk] Pl-259 Flash over voltage (score: 1): Author: "Pat Barthelow" <aa6eg@hotmail.com>; Date: Sat, 02 Dec 2006 05:28:00 -0800; SNIP; Ohhh the memory of my first Leyden Jar...as an 12 year old, I got a Renwal "toy" electrostatic generator for christmas. Holy collectible toys Batman! see: http://i9.ebayimg.com/03/i/05/e6/f9/1; /archives//html/Towertalk/2006-12/msg00054.html (8,447 bytes)
5. Re: [TowerTalk] Pl-259 Flash over voltage (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Sat, 02 Dec 2006 06:29:30 -0800; Looking again, I think you have a typo. 24 pF/foot, 2400 pF for a hundred feet. Other data of interest for this case.. They rate it at 2500VDC (It's air/foam dielectric.. gonna be a lot lower than so; /archives//html/Towertalk/2006-12/msg00056.html (8,847 bytes)

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