[sdiy] switch question

rude66 rude66 at gmail.com
Wed Dec 6 00:38:03 CET 2006


i figured something like that, i've had these kind of 'multiples'
before and that's why i referred to it as a 'spst'..

okay, in the meantime i've learned that these things will most likely
not work, so it's time for plan b.. i've located some spdt's that
won't look as good, but i guess they'll have to do..;-)

thanks!

ruud

On 12/5/06, Scott Gravenhorst <music.maker at gte.net> wrote:
> rude66 <rude66 at gmail.com> wrote:
> >hi scott,
> >
> >here are 2 pics:
> >
> >http://www.rude66.org/pics/switchback.jpg
> >http://www.rude66.org/pics/switchfront.jpg
> >
> >the switch has only 2 positions, you push the middle part in to switch it on..
>
> My _guess_ is that those are 4PST switches, but I can't say for sure without ohming it out.
>  A 4PST switch is really 4 SPST switches mechanically ganged to actuate simultaneously.  If
> it's a 4PST it can turn on or off 4 unrelated circuits all at the same time, but all 4 are
> on or all 4 are off.  In other words, it's still an SPST (albeit 4 in the same plastic
> package) which can't become an SPDT no matter how you wire it.
>
> >
> >
> >
> >> A switch with 8 contact lugs cannot be an SPST. I have no idea
> >what sort of switch you have, > but it's not an SPST. Is it a
> >toggle type? Or do you twist the actuator? That's one > strange
> >sounding switch... If it has only two positions, then you need to
> >map it out with a > continuity tester so we can know what type of
> >switch it really is. It may be single pole > multiple throw, or
> >multiple pole single throw, but without the continuity test map,
> >we can't > know. > >
> >
>
>
> -- ScottG
>
> ---------------------------------------------------------
> -- Scott Gravenhorst
> -- Xilinx Spartan-3E Based Music Synthesizers
> -- FatMan: home1.gte.net/res0658s/fatman/
> -- NonFatMan: home1.gte.net/res0658s/electronics/
>
>



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