I need to know the simplest way to make a momentary switch work as an
on off switch (similar to the way an SPST switch works).  I belive
that the best answer would consist of the other
parts are needed to make it work and a basic explanation of how they
work together.  I am not asking you to design a circuit but if you
feel like going that far then great.

Hello getriddait, the device you need is called a "latching relay". I
don't know how electrical minded you are, but it is a fairly simple
concept. However, I had a hard time finding a real good wiring
diagram. Look at this and then get back to me with a clarification
request should you not understand. I hope that this is enough, but if
it isn't we will just have to try harder.

http://www.selfhelpandmore.com/howdoesitwork/relays/index.htm

Redhoss

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Request for Answer Clarification by getriddait-ga on 12 Apr 2006 08:58 PDT

I am sorry I didn't respond sooner.  For some reason I didn't get an
email notification that you answered.  Anyway.  I appreciate the
answer, it answers the question good enough that I have an idea of
where to continue.  You don't happen to know if these latching/hlding
relays are sold separately?

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Clarification of Answer by redhoss-ga on 13 Apr 2006 07:47 PDT

Yes, they are sold separately. Here links to a couple of companies relays:

http://www.squared.com/us/products/relays_timers.nsf/unid/9DD36F412920298185256A22004ED21A/$file/relays&timersFrameset.htm

http://www.cutler-hammer.eaton.com/NASApp/cs/ContentServer?pagename=C-H/Common/AssetTemplateLink&c=Apubarticles&cid=987090559671&Sec=products

You should be able to find the voltage and current requirements you
need. Glad I was able to help you.

Good luck with your project, Redhoss