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On Mon, 23 Apr 2007 00:38:39 +0100, john jardine wrote:
Note that in conventional logic equations, "+" means "OR", not "AND",
which is how your switch is wired. The usual representation of (A AND B
AND C) would be either "ABC" or "A * B * C".

"Stephen J. Rush" wrote in message
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On Mon, 23 Apr 2007 00:38:39 +0100, john jardine wrote:
Note that in conventional logic equations, "+" means "OR", not "AND",
which is how your switch is wired. The usual representation of (A AND B
AND C) would be either "ABC" or "A * B * C".


Yes.
I was taught "." for AND and "+" for OR but in this case the original
poster seemed not to be into Boolean combinatorics so I said ******** to
George B and his antilogical notations.
.... Much like I assume a '5 degrees' rotation of something will be to rotate
it clockwise, unlike the CAD proggers who force the mathematically correct
but massively unfriendly 'anticlockwise'.



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"john jardine" wrote in message
.. .



Ignore.
It's ********. I missed B+C and they don't make 7 way switches



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john jardine wrote:

"john jardine" wrote in message
.. .



Ignore.
It's ********. I missed B+C and they don't make 7 way switches


Use three toggle switches, one in series with each switch. Then
parallel all three sets of switches.


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Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

On Mon, 23 Apr 2007 00:38:39 +0100, "john jardine"
Gave us:


You forgot to incorporate switch position status indicators.

An LED array will do nicely.

john jardine wrote:

"john jardine" wrote in message
.. .



Ignore.
It's ********. I missed B+C and they don't make 7 way switches

You forgot a PIC as well.

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"Michael A. Terrell" wrote in message
...
john jardine wrote:

"john jardine" wrote in message
.. .



Ignore.
It's ********. I missed B+C and they don't make 7 way switches


Use three toggle switches, one in series with each switch. Then
parallel all three sets of switches.


I'm having another 'thick' week and can't visualise your idea. Any chance of
a small spoon feed? .




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john jardine wrote:

"Michael A. Terrell" wrote in message
...
john jardine wrote:

"john jardine" wrote in message
.. .



Ignore.
It's ********. I missed B+C and they don't make 7 way switches


Use three toggle switches, one in series with each switch. Then
parallel all three sets of switches.

I'm having another 'thick' week and can't visualise your idea. Any chance of
a small spoon feed? .


The description above is wrong. It was all I had util I found the
full description on SEB.

He wants all three switches N.O. in series. Connect a SPST switch
across each of them to diasble that switch's N.O. function by shorting
that switch, or switches out. Then the remining switch or switches will
control the device.


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Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

"Michael A. Terrell" wrote in message
...
[...]

The description above is wrong. It was all I had util I found the
full description on SEB.

He wants all three switches N.O. in series. Connect a SPST switch
across each of them to diasble that switch's N.O. function by shorting
that switch, or switches out. Then the remining switch or switches will
control the device.

Thanks Michael. I get it now!



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