In article ,
TonyL wrote:
A variable number of inputs are to be fed *to* the conductor at
different points along its length.

A variable number of outputs are to be taken *from* the conductor at
different points along it's length.

Level changes on the outputs to be zero, or small, as inputs/outputs
added/removed.

How would you do it ?

If you add two identical signals the level doubles. With non identical
ones it could be anything.

To design a system where you add non identical signals with no apparent
change in level sounds like the Holy Grail...

--
*Men are from Earth, women are from Earth. Deal with it.

Dave Plowman London SW
To e-mail, change noise into sound.