Re: 9 or 12 VDC Flasher Circuit

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Article #16181

#16181

From: Michael de Kraker
Date: Thu, 21 Jan 1993 22:29

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pprun@august.it.uswc.uswest.com writes:


>I want to build or buy a relatively cheap flasher.  I want to flash
>an LED between 1 & 2 times/second.  I could use either 9 or 12 VDC (don't
>ask why - it's a long story).  Either a parts list, maybe with the pin
>outs, or a phone number for a catalog would be appreciated by this
>software engineer (hey, this is a *hardware* problem :-)


>Pete Prun
>pprun@lookout.mnet.uswest.com


  LM3909 - Led flasher IC cost about $1 ( I think RS still sells this )
           Requires external capacitor which controls the flash rate and
	   will flash for months on a AA cell.

  Flasing LED - Led with built-in flashing component. about $2 (RS also)
   
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    /        /        /       /    Michael A. de Kraker
   /        /______  /       /     Georgia State University  404-651-2390
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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!gsusgi1.gsu.edu!gsusgi1.gsu.edu!regmad
From: regmad@gsusgi2.gsu.edu (Michael de Kraker)
Subject: Re: 9 or 12 VDC Flasher Circuit
Message-ID: <regmad.727655345@gsusgi1.gsu.edu>
Organization: Georgia State University
References: <C17prF.41B@da_vinci.it.uswc.uswest.com>
Distribution: usa
Date: Thu, 21 Jan 1993 22:29:05 GMT
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