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Total 8 documents matching your query.

1. [RFI] Apple and Motorola Wall Chargers (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 15 Aug 2013 13:43:36 -0700; I've nearly finished the project of going through my home and shack to search out all the noisy wall warts that are switching power supplies and replace them with linear warts from my junk box. My pr; /archives//html/RFI/2013-08/msg00000.html (7,028 bytes)
2. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Thu, 15 Aug 2013 17:18:04 -0400; There's an aftermarket one of those white things that is a RFI-monster! It has since died but I cleaned it up by plugging it into a well-filtered power strip. I don't do Apple stuff, other then the t; /archives//html/RFI/2013-08/msg00001.html (8,307 bytes)
3. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: "W5JR.Mike" <w5jr.mike@gmail.com>; Date: Thu, 15 Aug 2013 17:37:59 -0400; And some (most?) of the vehicle to USB "chargers" exhibit horrendous noise up into the VHF spectrum. tnx Mike / W5JR _______________________________________________ RFI mailing list RFI@contesting.co; /archives//html/RFI/2013-08/msg00002.html (8,540 bytes)
4. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: Michael Coslo <mjc5@psu.edu>; Date: Thu, 15 Aug 2013 20:56:16 -0400; Don't use any after market Apple Power supplies. They are horribly made linear supplies, which might be quiet, but they are badly designed, single rectifier, bad circuit board layout. There is a not; /archives//html/RFI/2013-08/msg00003.html (8,045 bytes)
5. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Thu, 15 Aug 2013 22:57:01 -0700; Thrift shop, linear supply, 25 cents. USB cord in place of the integral one on the original, another 25 cents, maybe 50. Kurt _______________________________________________ RFI mailing list RFI@con; /archives//html/RFI/2013-08/msg00004.html (7,278 bytes)
6. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: Dale <svetanoff@earthlink.net>; Date: Fri, 16 Aug 2013 12:54:32 -0400 (EDT); Michael, A "quiet" switcher (that term should be classed as an oxymoron) may well not disturb your radios or other equipment, but it sure can raise havoc with 160m and AM b'cast band reception. I hav; /archives//html/RFI/2013-08/msg00005.html (11,103 bytes)
7. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Fri, 16 Aug 2013 10:46:57 -0700; On 8/16/2013 9:54 AM, Dale wrote: Actually making your own linear DC power supply to operate a device is not difficult - you can find filament transformers, diodes, filter caps, and linear regulator; /archives//html/RFI/2013-08/msg00006.html (8,396 bytes)
8. Re: [RFI] Apple and Motorola Wall Chargers (score: 1): Author: Tim Groat <tcgroat@mesanetworks.net>; Date: Tue, 20 Aug 2013 22:13:36 -0600; Let's face it: switchers are here to stay for a long time. Between energy efficiency regulations and IEC requirements for improved power factor, linear supplies with iron core transformers are not at; /archives//html/RFI/2013-08/msg00011.html (8,132 bytes)

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