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1. [TowerTalk] Protecting ferrites? (score: 1): Author: Jim Miller <jim@jtmiller.com>; Date: Mon, 29 Aug 2011 23:32:49 -0400; I'm putting a string of 31 mix ferrites on some Buryflex at my feedpoint. What's the recommendation for wx shielding? I was concerned that ice might find it's way to crack them. I was thinking of wra; /archives//html/Towertalk/2011-08/msg00477.html (7,026 bytes)
2. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: K8RI on TT <k8ri-on-towertalk@tm.net>; Date: Tue, 30 Aug 2011 00:07:05 -0400; Coiling the coax through the cores is more effective than a string of beads. I use (depending on frequency) 5 or 6 turns of Davis BuryFlex through 5 or 6, 2.4" #31 mix cores at the feed point of my 1; /archives//html/Towertalk/2011-08/msg00481.html (8,070 bytes)
3. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: "DJ7WW" <dj7ww@t-online.de>; Date: Tue, 30 Aug 2011 11:06:08 +0200; My chokes are wound through 4.5" toroids #61 mix. My cable is 1/2" ultraflexible Cellflex. I do not use any wheather shielding either, so far no problem. The oldest choke is now for 4 years exposed t; /archives//html/Towertalk/2011-08/msg00490.html (9,221 bytes)
4. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Tue, 30 Aug 2011 07:50:10 -0700; relatively high Q, low loss material on the HF bands. It is designed for use as a TRANSFORMER or inductor at HF, NOT as a suppression material. A common mode choke must be very LOW Q (high loss) to f; /archives//html/Towertalk/2011-08/msg00498.html (8,855 bytes)
5. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 30 Aug 2011 08:04:37 -0700; Snelling's book (originally written for Philips, a mfr of ferrites/powdered metal components, as Jim noted) is a great reference, particularly the (hard to get) 2nd edition. I had to find a copy in a; /archives//html/Towertalk/2011-08/msg00499.html (8,384 bytes)
6. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Tue, 30 Aug 2011 11:06:36 -0700; Six years ago, I presented an tutorial on RFI in pro audio at the IEEE EMC Symposium in Chicago. One of the major EU ferrite mfrs had a booth, and I discussed my work with the salesmen who inhabited; /archives//html/Towertalk/2011-08/msg00503.html (8,887 bytes)
7. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 30 Aug 2011 11:27:02 -0700; Edwards AFB has a copy in their library.. That's where my photocopied sections came from. I think that this legitimately falls in the "hard to get" category for which libraries are allowed to legally; /archives//html/Towertalk/2011-08/msg00505.html (9,094 bytes)
8. Re: [TowerTalk] Protecting ferrites? (score: 1): Author: Jim Miller <jim@jtmiller.com>; Date: Thu, 1 Sep 2011 14:19:18 -0400; I decided to go with the wound toroid rather than the string approach. I'm using 5T of 8x on a Biggest Clampon #31 mix. Neat, clean, compact and easy to maintain. Thanks Jim ab3cv ___________________; /archives//html/Towertalk/2011-09/msg00002.html (6,709 bytes)

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