Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!spool.mu.edu!news.cs.indiana.edu!att!emory!dixie.com!jgd
From: jgd@Dixie.Com (John G. DeArmond)
Newsgroups: sci.electronics
Subject: Re: light bulbs buzz when dimmed
Message-ID: <9142@rsiatl.Dixie.Com>
Date: 4 Apr 91 17:29:10 GMT
Organization: Dixie Communications Services
Lines: 17


>> an annoying buzz when dimed.  Is there a better circuit for dimming
>> the bulbs that will prevent that !@#$%^&*&^%$# buzz?

Yep.  Called a Variac variable autotransformer.   You can get 'em 
small enough to fit into a double switchbox.  Since it is a transformer,
it delivers nice undistorted power AND regulates all the way down to 
zero volts.

John


-- 
John De Armond, WD4OQC        | "Purveyors of speed to the Trade"  (tm)
Rapid Deployment System, Inc. |  Home of the Nidgets (tm)
Marietta, Ga                  | 
{emory,uunet}!rsiatl!jgd      |"Politically InCorrect.. And damn proud of it