Modular matrix with plug interconnection

Claim 1

A large modular matrix with plug interconnection including at least two individual modular matrix boards of insulating material electrically and mechanically united in abutting relationship in essentially the same plane, each of said boards having an upper face and a lower face, upper conductive members secured to said upper face and lower conductive members secured to said lower face, detachable contacts secured to said boards in board contact pairs, the first contact of each pair being electrically united to one of said upper conductive members and the second contact of each pair being electrically united to one of said lower conductive members, said contact pairs being inclined with respect to each other in order to achieve reasonably close packing, certain of said contacts having wire wrap tails extending beyond said boards, with the wire wrap tails of individual matrix boards being electrically united together so that a series of individual matrix boards may be wired together to produce a large modular matrix, and at least one plug having a pair of plug contacts which mate suBstantially simultaneously with a pair of board contacts to make a circuit including at least one upper board conductive member and at least one lower board conductive member.