- 1. [RFI] Re: Ferrite Beads (score: 1)
- Author: Tim Groat <tcgroat@earthlink.net>
- Date: Tue, 19 Oct 2004 19:38:55 -0600
- Consider U-cores, such as those in TV set flyback transformers. These are usually high-mu Mn-Zn cores. Check the junk box and ham swaps, or ask for a dead flyback at the TV repair shop (if you can fi
- /archives//html/RFI/2004-10/msg00067.html (6,488 bytes)
- 2. Re: [RFI] Re: Ferrite Beads (score: 1)
- Author: "Tom Rauch" <w8ji@contesting.com>
- Date: Wed, 20 Oct 2004 05:39:41 -0400
- transformers. These are swaps, or ask for a these days!). Ditch core. I know it's a common hint to use flyback or deflection cores, but if you measure impedance you'll find the available 43, 44 and
- /archives//html/RFI/2004-10/msg00068.html (8,077 bytes)
- 3. [RFI] Re: Ferrite Beads (score: 1)
- Author: Tim Groat <tcgroat@earthlink.net>
- Date: Thu, 21 Oct 2004 21:13:31 -0600
- Unless the ferrite has very high mu (in the thousands), the gap effect isn't large. A quick estimate: assume a core having .50" ID, 1.00" OD, 2.36" mean magnetic path length (Le), and mu=100. Relucta
- /archives//html/RFI/2004-10/msg00080.html (8,526 bytes)
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