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1. [TowerTalk] Identifying ferrite core material (score: 1): Author: g0hgw@yahoo.com (Robert Thain); Date: Fri Mar 14 09:44:17 2003; Hello, I've managed to lay my hands on some ferrite cores. They were used to 'screen' multi-core computer/communication cables. There are no markings. They are about an inch long, an inch in diameter; /archives//html/Towertalk/2003-03/msg00173.html (7,497 bytes)
2. [TowerTalk] Identifying ferrite core material (score: 1): Author: jimlux@earthlink.net (Jim Lux); Date: Fri Mar 14 10:41:46 2003; Wrap a few turns of wire through them and measure their inductance. That will tell you the AL factor (inductance/square root(turns)) (and by implication the permeability).. Measure at a few different; /archives//html/Towertalk/2003-03/msg00175.html (9,069 bytes)
3. [TowerTalk] Identifying ferrite core material (score: 1): Author: richard@karlquist.com (Richard Karlquist); Date: Fri Mar 14 11:23:03 2003; 99% of the time, these things are Fair-Rite 43 or equivalent. The permeability is 1000 up to about a MHz, then they become mostly resistive. Rick Karlquist N6RK richard@karlquist.com www.n6rk.com ww; /archives//html/Towertalk/2003-03/msg00177.html (7,515 bytes)
4. [TowerTalk] Identifying ferrite core material (score: 1): Author: nx7u@cox.net (Scott Townley); Date: Fri Mar 14 11:32:40 2003; If you have an antenna analyzer like the Autek VA-1 that reads R and jX, it's pretty straightforward. Loop a single (insulated) wire through the center of the ferrite and connect it to the antenna an; /archives//html/Towertalk/2003-03/msg00178.html (9,465 bytes)
5. [TowerTalk] Identifying ferrite core material (score: 1): Author: ccc@space.mit.edu (Chuck Counselman); Date: Fri Mar 14 12:50:27 2003; 1. Download the Fair-Rite catalog from <http://www.fair-rite.com/>. It contains detailed specifications of many, many types/sizes/shapes of materials/cores/beads/rods/etc. Your cable beads are most l; /archives//html/Towertalk/2003-03/msg00179.html (8,523 bytes)

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