Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ames!henry.jpl.nasa.gov!elroy.jpl.nasa.gov!jato!jade!morris
From: morris@jade.jpl.nasa.gov (Mike Morris)
Newsgroups: sci.electronics
Subject: Re: Latching Relay - does such a thing exist
Message-ID: <1828@jato.Jpl.Nasa.Gov>
Date: 28 Sep 89 20:51:15 GMT
References: <3558@dgis.daitc.mil>
Sender: news@jato.Jpl.Nasa.Gov
Lines: 26
In-Reply-To: <562@ariel.unm.edu>

Mail addressed to  hydra.unm.edu!ee5391aa  bounced badly, so pardon the
post:

%>I have an application where I need to activate a SPDT set of contacts such
%>that the toggle action does not release after the coil voltage is removed.

%If you want to do this on the cheap, try to get hold of an old VW headlight
%relay. These things were used to toggle the high-low headlight beam from an
%SPST switch. The drawback is that the contacts are SPST, too. You might have
%to use a second relay (your choice of contact types).

Or get the one out of a junkyard Volvo - my '71 145 had a Bosch SPDT relay -
I had to replace it once, and went to a junkyard.  Every 140-series one I saw
had it - and a SPDT is just what you say you need.  Watch the coil current,
some of them will draw a amp or so.

-- 
Mike Morris                      UUCP: Morris@Jade.JPL.NASA.gov
                                 ICBM: 34.12 N, 118.02 W
#Include quote.cute.standard     PSTN: 818-447-7052
#Include disclaimer.standard     cat flames.all > /dev/null   

Mike Morris                      UUCP: Morris@Jade.JPL.NASA.gov
                                 ICBM: 34.12 N, 118.02 W
#Include quote.cute.standard     PSTN: 818-447-7052
#Include disclaimer.standard     cat flames.all > /dev/null