[sdiy] on/on/on DPDT to 3 position switch

[Matthias.Herrmann at jeppesen.com]

synth-diy-bounces at dropmix.xs4all.nl wrote on 12/18/2008 04:27:44 AM:
> Only some switches operate this way.
> Most switches toggle both pairs of contacts in parallel giving you a
> conventional
> 2-way switch with centre-off.
> 
> Switches like the C&K7211 have a special arrangement that toggles the 
switch
> contacts ina different manne rsulting in set of contacts always 
> being closed when
> in the centre-position. This is how you are able to get a 3-way 
> action from the
> switch.

just a little graphic to make it more visible:
http://www.modular.fonik.de/files/ononon.gif

cheers,
matthias
___
www.modular.fonik.de


> 
> Best regards
> Laurie Biddulph
> www.elby-designs.com
> 
> On Thu Dec 18 14:16 , "John Luciani"  sent:
> 
> >On Wed, Dec 17, 2008 at 6:37 PM, Derek Holzer derek at umatic.nl> wrote:
> >> Hi, thanks for the information. The main question was whether any 
on-on-on
> >> switch could be wired in this way, and not just the C&K7211. Can I 
assume
> >> this is true, or are there different types of on-on-on switches?
> >
> >I have never heard of other types of on-on-on switches. All of the 
> ones that I
> >have seen operate like the 7211.
> >
> >(* jcl *)
> >
> >>
> >> best!
> >> Derek
> >>
> >> megaohm wrote:
> >>>
> >>> That is no trick. The C&K7211 needs to be wired to function as a 3
> >>> position switch. The info in on their site under "technical data" 
pdf.
> >>>
> >>> NKK also make these and others do, too.
> >>>
> >>> They must be:
> >>>
> >>> ON/ON/ON
> >>>
> >>> not
> >>>
> >>> ON/OFF/ON
> >>>
> >>>
> >>> p.
> >>>
> >>> On Wed, Dec 17, 2008 at 3:42 PM, Derek Holzer derek at umatic.nl
> >>> derek at umatic.nl','','','')">derek at umatic.nl>> wrote:
> >>>
> >>>    I've read that the C&K 7211 switches can be converted into a 3
> >>>    position (triple throw?) switch:
> >>>
> >>>    http://www.simple-answer.com/3_pos_switch.jpg
> >>>
> >>>    and that this wiring trick could work with other on/on/on DPDT
> >>>    switches, like this one from Banzai:
> >>>
> >>>
> >>> 
> http://www.banzaieffects.com/MEC-M-80008-C-chrome-Toggle-on-on-on-
> DPDT-pr-13719.html
> >>>
> >>>    Can anyone confirm or deny this rumor?
> >>>    --    Derek Holzer
> >>>    http://www.umatic.nl
> >>>    http://blog.myspace.com/macumbista
> >>>    _______________________________________________
> >>>    Synth-diy mailing list
> >>>    Synth-diy at dropmix.xs4all.nl
> Synth-diy at dropmix.xs4all.nl','','','')">Synth-diy at dropmix.xs4all.nl>
> >>>    http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >>>
> >>>
> >>
> >> --
> >> derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.
> com/macumbista
> >> ---Oblique Strategy # 138:
> >> "Retrace your steps"
> >> _______________________________________________
> >> Synth-diy mailing list
> >> Synth-diy at dropmix.xs4all.nl
> >> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >>
> >
> >
> >
> >-- 
> >http://www.luciani.org
> >_______________________________________________
> >Synth-diy mailing list
> >Synth-diy at dropmix.xs4all.nl
> >http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >)
> 
> 
> 
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