Re: RFI free dimmer switches...

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Article #15406

#15406

From: Robert Alexander
Date: Sat, 26 Dec 1992 06:32

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In article <72415@cup.portal.com> dbell@cup.portal.com (David J Bell) writes:
>
>>But a light dimmer I have installed makes the lightbulb RING alot, and
>>it's very annoying. The ringing gets worse when you dim the light. I'm
>>wondering if a "RFI free" dimmer will reduce this ringing. Anyone know?
>
You might look more in the direction of using a full wave
rectifier and a filter cap. If you take the AC out of it
completely...It CAN'T ring.

You'll wind up with about 140 volts DC and that through a
rheostat should work on a standard light bulb ok. (I think).

My $.02

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Message-ID: <1992Dec26.063254.23524@murdoch.acc.Virginia.EDU>

Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!concert!uvaarpa!murdoch!kronos!alexander

References: <1992Dec25.235206.6146@ee.ubc.ca> <72415@cup.portal.com>

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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!concert!uvaarpa!murdoch!kronos!alexander
From: alexander@kronos.pharm.Virginia.EDU (Robert Alexander)
Subject: Re: RFI free dimmer switches...
Message-ID: <1992Dec26.063254.23524@murdoch.acc.Virginia.EDU>
Sender: usenet@murdoch.acc.Virginia.EDU
Organization: University of Virginia
References: <1992Dec25.235206.6146@ee.ubc.ca> <72415@cup.portal.com>
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Date: Sat, 26 Dec 1992 06:32:54 GMT
Lines: 19

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