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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+13\.8\s+dc\s+tower\s+protection\s*$/: 3 ]

Total 3 documents matching your query.

1. [TowerTalk] 13.8 dc tower protection (score: 1): Author: "johne tds.net" <johne@tds.net>; Date: Sun, 22 Jul 2012 10:29:29 -0500; I need to --build-- not BUY some type of lighting damage reduction for the 13.8 volt DC running to antenna switching. I did have a link that no longer works of some information. I would like to use s; /archives//html/Towertalk/2012-07/msg00241.html (6,836 bytes)
2. Re: [TowerTalk] 13.8 dc tower protection (score: 1): Author: "K1TTT" <K1TTT@ARRL.NET>; Date: Sun, 22 Jul 2012 17:31:08 +0000; Take a look at what is done in coax powered devices. I think the old heathkit switch used 100mh to keep the rf off the dc stuff. Just look for a common inductor in that range that will handle the cur; /archives//html/Towertalk/2012-07/msg00243.html (8,184 bytes)
3. Re: [TowerTalk] 13.8 dc tower protection (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Sun, 22 Jul 2012 15:26:14 -0700; Rather than a MOV, what you really want is a big power zener. The MOV dies a little each time it clamps. The Zener keeps on ticking. So put a reverse biased 20V (or whatever you feel comfortable with; /archives//html/Towertalk/2012-07/msg00244.html (7,640 bytes)

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