Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts a combination of conductors or channels {with magnetically controlled switches, e.g. by movement of a magnet}
Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts a combination of conductors or channels {with magnetically controlled switches, e.g. by movement of a magnet}