| To: | tentec@contesting.com |
|---|---|
| Subject: | Re: [TenTec] Switching Power Supplies |
| From: | "Dr. Gerald N. Johnson" <geraldj@weather.net> |
| Reply-to: | geraldj@weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Mon, 15 Mar 2010 11:57:39 -0600 |
| List-post: | <mailto:tentec@contesting.com> |
On 3/15/2010 11:50 AM, Jim Brown K9YC wrote: On Mon, 15 Mar 2010 11:36:15 -0400, John Ferrell wrote:I keep hearing that switchers are noisy. I think that is an outdated rumor.It is neither a rumor nor outdated. It is POSSIBLE to build quiet switchers, but it costs more, so 99.9% of all switchers are nasty noise generators. And then a few need a FCC broadcast transmitter license! 73, Jim Brown K9YC 73, Jerry, K0CQ |
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