shapes so as to form a contact face 25a see fig2 a tubular like insulator or connector 28 fits over the projected contact ends 25 of a number of adjacent contacts 22 and is adapted to present inward disposed edges which snap over lateral shoulders 29 formed on the end contacts so that the insulator or connector 28 is frictionally held snugly against the face of the backplane the connector 28 has an elongated slot 30 which is suited to receive a printed circuit board two such printed circuit boards pc a and pc b are illustrated in fig1 where pc b is shown in a preassembled but removed relationship relative to its connector 28 b and printed circuit board pc a is illustrated in assembled relationship within the connector 28 a there is no printed circuit board illustrated with the connector 28 although one is intended to be used therewith the contact ends 25 shown in fig2 are biased by their resiliency toward one another and are restrained by abutment of the contact engaging the connector lip 33 adjacent the slot 30 the camming type angling of the contact faces 25a allows the contact faces 25a to be moved apart as the printed circuit board is pushed into the connector slot it is possible to have the circuit boards provided with conductive paths on either or both sides of the board and at least some of the circuit paths 35 are illustrated on board pc b and terminate along end terminals 37.