Re: gEDA-user: spdt, spst

[handsome greg <xdissent@xxxxxxxxx>]

i think you have them backwards.

all is explained here http://www.kpsec.freeuk.com/components/switch.htm


On Wed, 19 Jan 2005 16:42:09 -0200, Xtian Xultz <xultz@xxxxxxxxxxxx> wrote:
> Em Qua 19 Jan 2005 16:31, Karel Kulhavy escreveu:
> > On Wed, Jan 19, 2005 at 10:22:44AM -0800, John Luciani wrote:
> > > SPST ..... Single Pole, Single Throw
> > > SPDT ..... Single Pole, Double Throw
> >
> > What does "pole" and "throw" mean? I know just what north and south pole
> > is. And also telephone pole.
> >
> > Cl<
> I dont know what a telephone pole is, but a double pole, here called H-H (dont
> know why) is when the key have a center pin, and two pins, the switch conduct
> from the center pin to one pin in one position, and from the center to the
> other pin in the other position.
> Throw mean how many contacts the switch makes simultaneously. I have here
> switches with 4 throws...
>