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From: woolstar@cit-vax.UUCP
Newsgroups: sci.electronics
Subject: Re: Question about multi-switched lights
Message-ID: <2131@cit-vax.Caltech.Edu>
Date: Thu, 26-Mar-87 10:25:20 EST
Article-I.D.: cit-vax.2131
Posted: Thu Mar 26 10:25:20 1987
Date-Received: Sat, 28-Mar-87 03:44:52 EST
References: <2129@cit-vax.Caltech.Edu>
Organization: California Institute of Technology
Lines: 35

> A simpler method that I remember from my dad's electrician's handbook is:
> 
>         ____      ____      __   __      _____
>        /    \    /    \    /       \    /     \
>       o      o  o o    o  o o       o  o o     o
>               \  /      \  /         \  /
> (+) --o        \/        \/   etc..   \/       o--- [light] -----(-)
>                /\        /\           /\       
>               /  \      /  \         /  \
>       o      o  o o    o  o o       o  o o     o
>        \____/    \____/    \__   __/    \_____/
> 
>     SPDT      DPDT      DPDT         DPDT     SPDT
> 

Let me just clarify that for SPDT and DPDT


       o     o--o o     o    o  o-o
       |
       o                o
                        |
                        |
       o     o--o o     o    o  o-o


         State 1          State 2


Sorry about anyone who didn't quite understand.
-- 
--------------
 John D Woolverton                      "Yes it's true..."
jdw@tybalt.caltech.edu
 woolstar@csvax.caltech.edu