[sdiy] c&k on-on-on switches

[harrybissell]

Woah I don't think so...

It "is" a real three position switch, but you must add an
external jumper to make it so.

Normally... both halves of a DPDT toggle er... toggle in the
same direction.   In the on-on-on... the two outermost toggle
positions work normally... but the center position puts both
halves of the switch in OPPOSITE positions.

It is one of the most incredibly useful switches IMHO

I sure hope that MINE arrive soon :^P

H^) harry

John Blacet wrote:

> This system can be confusing as the on-on-on is really just a SPDT
> switch with a middle position that basically is not connected
> electrically to either of the two side pins.
>
> This can be useful with some external logic, like a pull up resistor on
> the center pin followed by some diode logic or basic CMOS gates.
>
> If you want a "real" three position switch, try to find a SP3T. These
> are easier to locate in slide switches.
>
> --
> Regards,
> --/////--
> John Blacet
> Blacet Research
> http://www.blacet.com
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