[sdiy] switch question

[Seb Francis]

Definitely can use as SPDT, try:

NC - pin 8
COM - pins 1&2 (connected together)
NO - pin 7


rude66 wrote:
> okay, this is what the switch does:
>
> switch off:
>
> 1 shorts to 8
> 2 shorts to -
> 3 shorts to 4 and 5
> 4 shorts to 3 and 5
> 5 shorts to 3 and 4
> 6 shorts to -
> 7 shorts to -
> 8 shorts to 1
>
> switch on:
>
> 1 shorts to -
> 2 shorts to 7
> 3 shorts to 4 and 6
> 4 shorts to 3 and 6
> 5 shorts to -
> 6 shorts to 3 and 4
> 7 shorts to 2
> 8 shorts to -
>
> would this in some way be spdt-able?
>
> @ jaco:
> they are nice, they feel nice too and they have exact square holes for
> them on the panel, so if possible i'd like to keep them.. others just
> wouldn't look as good. normally i'd just have used standard ones, so
> there'd have been no problem..
>
> ruud
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> On 12/6/06, Scott Gravenhorst <music.maker at gte.net> wrote:
>> rude66 <rude66 at gmail.com> wrote:
>> >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..;-)
>> >
>>
>> Try this:  the pins appear to be organized in pairs.  If it were me 
>> designing it, I'd say that
>> each pair is a switch unit, SPST.  Without touching the switch 
>> button, see if there are any
>> pairs shorted, write those down.  Then see if there are any that are 
>> open and write those
>> down.  If there is a combination of open and closed pairs without 
>> touching the button, then
>> it's possible to wire it as at least one SPDT.  With 4 like that, 
>> it's possible that 2 are on
>> while 2 are off and that the state of the switches reverses when the 
>> button is pushed.  Or it
>> could just be 4 x SPST, all on or all off.
>>
>> I've given far more than $0.02 here, so I'm all out...
>>
>>
>> -- 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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