Andy -
Great, thank you, this is helpful. I will need to use Relays to do the
switching (as the circuits are auto switched) but this helps me mentally.
Best,
Alan
'52 A90
'53 BN1
'64 BJ8
On Wed, Feb 18, 2009 at 11:38 AM, andy pole <ampole@hotmail.com> wrote:
> Alan
>
> To put it really simply you would not need a relay as you will be using
> switches to drive the relay, you can do it with just 2 way switches wired in
> parallel, (parrallel is OR, series is AND)
>
> input 1 on first switch (2 way switch)
> input 2 on second switch (2 way switch)
>
> then for arguments sake wire both sides of the switch to a bulb, then earth
> the bulb.
>
> Either switches will turn on the bulb, or both together,
> if both are off the bulb will be off
>
> you could do it with a semiconductor logic gate, but 2 switches would do
>
> hope that makes sense
>
> Andy
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