common phase locked generator driving system so that absolute phase is maintained in the composite arrangement as seen in fig8 a clock generator 210 is provided which generates a sine wave signal for distribution to two distribution circuits 250a and 250b distribution to distribution circuit 250a is via buffer 262a and resistor 264a to bus 225a of the distribution circuit 250a distribution circuit 250a has a plurality of nodes 290a and one or more receivers 230a with slicers or comparators 274a one of the slicers 274a preferably the one coupled to the node to which the generator is coupled is used as part of a feedback circuit which is similar to the feedback circuit discussed above with reference to fig7 thus the signal being received by all nodes 290a in distribution circuit 250a is sampled by the slicer 274a which provides a square wave signal to a comparator 293 for comparing the signal to a similar signal received from a slicer 274b of distribution circuit 50b as described below the comparative phase determined by comparator 293 is used as a control signal for a phase controller 291 the phase controller 291 also receives the sine wave signal generated by clock generator 210 and changes the phase of the incoming signal according to the control signal received from the comparator 293 the phase changed signal is then forwarded to distribution circuit 250b via buffer 262b and resistor 264b to bus.