[sdiy] pre/post switch

[Scott Gravenhorst]

Like this: 


                 +----------------  out 1
                 |
 A ----------*   *   *
              \     /
               \   /
                \ /
                 X   <--- no connection at X
                / \
               /   \
              /     \
 B ----------*   *   *
                 |
                 +----------------  out 2





"Scott Evans, Gen Mgr" <esresource at earthlink.net> wrote:
>If your question is to route two signals to two destinations it would be
>as follows:
>
>The each signal would be routed to the center poles of the switch. The
>destinations would be routed to one side of the switch. The other side
>of the DPDT would cross connect (like an X) to the destination sides so
>that flipping the switch would alternate to the other destinations.
>
>I tried drawing this in ASCII with no success. Perhaps some talented
>artist can do a gif.
>
>Scott
>
>markus wrote:
>> 
>> how would you wire up a simple, common (DPDT?) switch that routed a signal
>> from A to B, or B to A depending on the position of the switch ? no fair
>> using relays!
>> mark

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