Signal generator for ecm bench

[Charles Brooks]

If you can wait till after work, when I get home I'll scan the schematics in and post them on a page or upload them to the FTP site.

If you're in a hurry, check out National Semiconductor's site at

http://www.national.com/pf/LM/LM555.html

you'll find a bunch of info on the LM555. There are several schematics hidden in the application notes and the data sheets for various uses. There are also several tutorials on the web for the 555. Searching on Yahoo, Lycos or Google should get you more info than you would care to sift through :)

Charles Brooks
Mid-Atlantic Speed Shop
http://www.massmotorsports.com

---------- Original Message ----------------------------------
From: Scott Knight <scott at scottknight.com>
Reply-To: diy_efi at diy-efi.org
Date: Thu, 09 Mar 2000 07:48:42 -0500

>Now that I am working on an ecm bench to test a few things with regard
>to running two controllers in parallel (LT1 PCM and SEFI8LO), I need a
>function generator to give me things like crank and vss signals.  After
>a couple hours in the message archives I decided to make a run to Radio
>Shack to find a book to get the 555 Timer IC Circuits book.  This looks
>to have the circuit(s) I need to build, but wouldn't you know, all of
>the stores in my district don't have it (this is what the local store
>manager told me after searching her computer).  So, instead of driving
>all over the west end of PA to get a $2 book, I wonder if anyone has a
>schematic that would be useful to me instead.  Being an ME, I have
>limited EE capabilities, but at least can read schematics fairly well. 
>Building is not a problem...designing and understanding are.
>
>Thanks.
>-- 
>Scott Knight  mailto:scott at scottknight.com
>http://www.scottknight.com/ IRC:SS396man
>'95 Black Impala SS
>'94 Ducati 900SS CR
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