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Total 10 documents matching your query.

1. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: <nlsa@nlsa.com>; Date: Fri, 20 Oct 2023 14:32:21 -0400; Dear friends, After re-winding the 3-core toroidal choke and adding some 1,000pF bypass capacitors to the AC input and VFD output, there is virtually no increase in my noise floor when the elevation; /archives//html/RFI/2023-10/msg00023.html (11,001 bytes)
2. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: Michael Martin <mike@rfiservices.com>; Date: Fri, 20 Oct 2023 14:39:46 -0400; That's the kind of post we need more often! Thanks Michael Martin RFI Services 51 W Bay Front Rd Lothian, MD 20711 240-508-3760 mike@rfiservices.com www.rfiservices.com ______________________________; /archives//html/RFI/2023-10/msg00024.html (12,102 bytes)
3. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: Frank W3LPL <donovanf@starpower.net>; Date: Fri, 20 Oct 2023 15:26:12 -0400 (EDT); Please be very careful about applying W9IP's experience before his good advice causes major property loss or someone gets badly hurt or worse... Capacitors must never -- must never! -- be connected t; /archives//html/RFI/2023-10/msg00025.html (13,720 bytes)
4. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: <nlsa@nlsa.com>; Date: Fri, 20 Oct 2023 15:35:11 -0400; Dear Michael I neglected to mention that it took me ten years. :) Best, Michael From: Michael Martin <mike@rfiservices.com> Sent: Friday, October 20, 2023 2:40 PM To: nlsa@nlsa.com Cc: Rfi List <rfi@; /archives//html/RFI/2023-10/msg00027.html (12,566 bytes)
5. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: <nlsa@nlsa.com>; Date: Fri, 20 Oct 2023 16:00:17 -0400; Dear Frank, You got my attention! I will correct my mistake right away. W9IP Please be very careful about applying W9IP's experience before his good advice causes major property loss or someone gets; /archives//html/RFI/2023-10/msg00028.html (14,583 bytes)
6. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: Michael Carter via RFI <rfi@contesting.com>; Date: Fri, 20 Oct 2023 20:12:12 +0000; Hi Frank, Do you know if the widely available Corcom AC line filters (presumed to be differential mode filters only) use the appropriate capacitor classes? I have a few of them, not yet installed any; /archives//html/RFI/2023-10/msg00029.html (19,433 bytes)
7. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: Pete Smith N4ZR <pete.n4zr@gmail.com>; Date: Fri, 20 Oct 2023 16:29:38 -0400; Corcom datasheets for at least some models give insertion loss versus frequency values for both modes, common mode and differential. I'd be awfully surprised if they weren't compliant with the cap r; /archives//html/RFI/2023-10/msg00031.html (18,929 bytes)
8. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: Frank W3LPL <donovanf@starpower.net>; Date: Fri, 20 Oct 2023 17:59:56 -0400 (EDT); Hi Mike, Sorry, but I do not know,but it would seem highly unlikely that a new product would use capacitors not safe for use on AC power 73 Frank W3LPL Hi Frank, Do you know if the widely available C; /archives//html/RFI/2023-10/msg00036.html (19,396 bytes)
9. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: Michael Carter via RFI <rfi@contesting.com>; Date: Fri, 20 Oct 2023 22:16:24 +0000; Thanks, Frank and Pete. That was my supposition, but the AC line filters I have were hamfest acquisitions from some years back. They are Corcom brand, but I don't recall the model numbers. 73, Mike,; /archives//html/RFI/2023-10/msg00037.html (20,093 bytes)
10. Re: [RFI] Filtering 220VAC : Success (score: 1): Author: <john@kk9a.com>; Date: Mon, 23 Oct 2023 23:53:19 -0400; Excellent post Frank. Thanks for bringing attention to the dangers of using the wrong capacitor type. John KK9A Please be very careful about applying W9IP's experience before his good advice causes m; /archives//html/RFI/2023-10/msg00040.html (7,328 bytes)

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