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Total 14 documents matching your query.

1. [RFI] Info needed (score: 1): Author: "Ken Gordon" <kgordon2006@frontier.com>; Date: Wed, 17 Jul 2024 09:45:44 -0700; I am in the process of building and/or serviceing a few devices here which I believe could use ferrite beads on some of the leads. One of those "devices" is a TV-2/U tube tester, an early model which; /archives//html/RFI/2024-07/msg00014.html (7,141 bytes)
2. Re: [RFI] Info needed (score: 1): Author: "Dave (NK7Z)" <dave@nk7z.net>; Date: Wed, 17 Jul 2024 12:16:08 -0700; Hi, Take a look at: https://www.nk7z.net/rfi-now-house-cleaning/ that is a little piece I put together dealing with cleaning up RFI on various items... About halfway down is a list of ferrites by typ; /archives//html/RFI/2024-07/msg00020.html (9,737 bytes)
3. Re: [RFI] Info needed (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Wed, 17 Jul 2024 12:50:41 -0700; Fair-Rite #43 is NEVER a good choice below 30 MHz. Mix #31 is the only good choice for 160M through 10M, and slightly better than #43 for 6M. Place about 7 to 10 wraps of cable on a ferrite. Each pa; /archives//html/RFI/2024-07/msg00021.html (8,563 bytes)
4. Re: [RFI] Info needed (score: 1): Author: "Ken Gordon" <kgordon2006@frontier.com>; Date: Wed, 17 Jul 2024 14:31:10 -0700; Thanks, Dave. Your site is very informative. I really like it. However, what I need are some of those small ferrite beads that fit over a single strand of "hookup" wire, usually installed just at whe; /archives//html/RFI/2024-07/msg00023.html (11,991 bytes)
5. Re: [RFI] Info needed (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Wed, 17 Jul 2024 19:41:48 -0700; Hi Ken, Dave and I have been good friends and collaborators for years, but I strongly suggest that you study my work on HF chokes. His advice to use work on identifying, chasing, and fixing RFI issue; /archives//html/RFI/2024-07/msg00025.html (8,350 bytes)
6. Re: [RFI] Info needed (score: 1): Author: "Dave (NK7Z)" <dave@nk7z.net>; Date: Wed, 17 Jul 2024 19:52:48 -0700; I agree with Jim fully on this, he is the gold standard on Chokes... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Di; /archives//html/RFI/2024-07/msg00026.html (8,675 bytes)
7. Re: [RFI] Info needed (score: 1): Author: Clay Autery <KY5G@montac.com>; Date: Thu, 18 Jul 2024 07:33:59 -0500; Yep.... and some enterprising young ARO/write should take up the editor reins and put all of Jims various works into a multichapter, high-speed, low-drag, illustrated manual. And PROOFED by Jim bef; /archives//html/RFI/2024-07/msg00027.html (9,681 bytes)
8. Re: [RFI] Info needed (score: 1): Author: Wes Stewart via RFI <rfi@contesting.com>; Date: Thu, 18 Jul 2024 13:01:01 +0000 (UTC); Did you actually read what the OP said? It's a rhetorical question; of course you didn't, otherwise you would not have issued your usual answer to anything ferrite. He has a specific need, a suppre; /archives//html/RFI/2024-07/msg00028.html (10,058 bytes)
9. Re: [RFI] Info needed (score: 1): Author: "Dave (NK7Z)" <dave@nk7z.net>; Date: Thu, 18 Jul 2024 06:12:32 -0700; Ken, Take a look at the attached screenshot of the FairRite catalog... A is the OD, B is the ID, and C is the length. Look at the second pair of numbers from the left, numbers 3 and 4. That is typica; /archives//html/RFI/2024-07/msg00029.html (9,419 bytes)
10. Re: [RFI] Info needed (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 18 Jul 2024 11:11:30 -0700; Yes, but he wants something that doesn't work. I could fill my gas tank with water, but it wouldn' get me very far! The only bead that WORKS at HF with no turns is Fair-Rite #73, and the largest size; /archives//html/RFI/2024-07/msg00031.html (9,868 bytes)
11. Re: [RFI] Info needed (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 18 Jul 2024 11:16:20 -0700; This reflector passes plain text only. In the 20 years I've been researching the use of ferrites to kill RF noise, Fair-Rite is the ONLY company that publishes enough data to evaluate their usefulnes; /archives//html/RFI/2024-07/msg00032.html (9,147 bytes)
12. Re: [RFI] Info needed (score: 1): Author: <charlie@thegallos.com>; Date: Thu, 18 Jul 2024 14:30:26 -0400; You keep replying as if he is asking about something for COAX, and HF - he's asking about little bead on the leads of tubes inside a device, and is SLIGHTLY OT. Yes, but he wants something that doesn; /archives//html/RFI/2024-07/msg00033.html (9,852 bytes)
13. Re: [RFI] Info needed (score: 1): Author: "Dave (NK7Z)" <dave@nk7z.net>; Date: Thu, 18 Jul 2024 18:54:14 -0700; Hi Jim, The part numbers were Fair-Rite part numbers, by various vendors, I mean resellers. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARR; /archives//html/RFI/2024-07/msg00035.html (9,587 bytes)
14. Re: [RFI] Info needed (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Fri, 19 Jul 2024 15:47:31 -0500; This is important information I was previously unaware of. I extend thanks and appreciation to Jim Brown for making this clear. I've always forced as many turns through a clamp on core as possible p; /archives//html/RFI/2024-07/msg00042.html (7,898 bytes)

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