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Path: utzoo!linus!decvax!tektronix!orca!tekecs!jeffw
From: jeffw@tekecs.UUCP (Jeff Winslow)
Newsgroups: net.analog
Subject: Re: thermal diodes
Message-ID: <4146@tekecs.UUCP>
Date: Thu, 1-Nov-84 10:55:19 EST
Article-I.D.: tekecs.4146
Posted: Thu Nov  1 10:55:19 1984
Date-Received: Sat, 3-Nov-84 05:55:01 EST
References: <3259@rabbit.UUCP>
Organization: Tektronix, Wilsonville OR
Lines: 19

I could reply to this by mail, but this newsgroup doesn't get enough
activity (only 30 articles here!) so -----

I think what you are talking about is called a thermoelectric refrigerator,
based on the Peltier effect. If you put current through a junction of 
certain dissimilar metals or semiconductors (say bismuth and tellurium), 
the junction area gets cold. 

I think there are some beer-cooler type things to run off of a car battery
that use this principle.

One vendor of thermoelectric modules is Cambion, 1 Alewife Place, Cambridge,
MA (02140). I can't speak for or against them, as I just happened to get a
catalog of theirs, but it's a start.

					     Jeff Winslow
		       			Switching supply designer

				An analog man in a digital world...