OOPS! Re: [sdiy] pre/post switch

[mark verbos]

OOPS! I mean

b-a-d
d-c-f
f-e-b

translation from pencil sketch to typed message ;)

mark

BTW. each typed line is 1 pole. since it's 3 letters each way....

mark verbos wrote:

> I don't think that's what he wanted. I  imagine Marus was looking for 
> this.
>
> a = input
> b = in of first module
> c = out of first modules
> d = in of second module
> e = out of second module
> f = output
>
> then you need a TPDT switch wired like this
>
> b-a-d
> d-c-f
> f-e-c
>
>
> when it is in the "left mode" you will have input-first module-second 
> module-output
> when it is in the "right mode" upi will have input-second mdule-first 
> module-output
>
>
> am I right?
>
> mark
>
>
>
> Scott Gravenhorst wrote:
>
>> 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
>>>>
>>
>> =========================================================  - 
>> Government: The other religion.
>> - The media's credibility should always be questioned.
>> - Lambs who lie down with lions are lunch.
>>
>> -- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
>> -- Linux Rex         | RedWebMail by RedStarWare
>> -- FatMan: home1.GTE.NET/res0658s/FatMan/index.html
>> -- NonFatMan: home1.GTE.NET/res0658s/electronics/index.html
>>
>>
>>
>
>
>