>The problem was that I could not get them to go with a 9 volt >battery. 4*2.1= 8.4 <9 and the circuit should work without a resistor, but >it did not. Maybe low battery voltage was the problem, they lit with a 12 >volt battery >Dana Dickson > Nope, It's Current again! a 9 volt battery is designed for low current applications such as am/fm radios. It won't put out the amount of current you're asking it to. Internal resistance within the battery goes too high. Try a series/parallel combination of, say, AA Alkaline cells at about 3 volts or so. Green LEDs have a forward voltage drop of about 1.8 volts (I think) so this should be more than sufficient. *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Fri Jun 25 1999 - 08:08:43 PDT
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