Date:         Tue, 18 Sep 2007 18:09:00 -0400
Reply-To:     Mike S <mikes@FLATSURFACE.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mike S <mikes@FLATSURFACE.COM>
Subject:      2 LEDs
In-Reply-To:  <918253.34821.qm@web82704.mail.mud.yahoo.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

This is for David Kao, who asked for help in running a simple
electrical experiment with 2 LEDs. I used a 12V regulated source.

(12V - (2 x 2.1V)) / 0.02A = 390 ohms.

http://www.flatsurface.com/pics/2LEDs.jpg

Works great! Neither is significantly brighter than the other, and
neither blew up, despite dire predictions.

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