I was thinking if it would be possible to create a completely electronicly controlled SPDT switch using the following method:
create a conductor that looks like the following
/------- B / A------< B \\ \\-------
The electrons enter from A and across the conductor there is an electric field(maybe something like a capacitor).
Then with the right voltage across B to create the electric field one should be able to "deflect" the electrons into either path? I'm not sure if this would work in a conductor though as after the field is gone the electrons would then take both paths... I suppose the field would have to extend to the branch. Another problem is that it might require very precise control of the voltage so no current would leak into the wrong path. One "benefit" would be that without any applied voltage it would act as a divider.
Just a thought.
AD