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Article #7690Re: Audible effects in solid-state electronics
From: Henry Spencer
Date: Wed, 25 Jan 1989 05:48
Date: Wed, 25 Jan 1989 05:48
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In article <9359@nsc.nsc.com> woolsey@nsc.nsc.com (Jeff Woolsey) writes: >...So, is there any validity to the theory that certain logic families >exhibit piezoelectric effects when operating? Much more probably you are rediscovering the fact that switching power supplies can "sing" and the music :-) is load-dependent. It's quite noticeable on an Iris 4D when the graphics hardware fires up. -- Allegedly heard aboard Mir: "A | Henry Spencer at U of Toronto Zoology toast to comrade Van Allen!!" | uunet!attcan!utzoo!henry henry@zoo.toronto.edu
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Newsgroups: sci.physics,sci.electronics Path: arc1-ca.pugleaf.net!utzoo!henry From: henry@utzoo.uucp (Henry Spencer) Subject: Re: Audible effects in solid-state electronics Message-ID: <1989Jan25.054823.2166@utzoo.uucp> Organization: U of Toronto Zoology References: <9359@nsc.nsc.com> Date: Wed, 25 Jan 89 05:48:23 GMT