formed with an opening 32 of the shape shown in fig3 so that either a flat or round cable 36 can be connected to the electrical contacts 13a h the plug illustrated in fig1 4 provides a sturdy and reliable electrical plug and the housing 16 holds the assembly tightly together a modification of the invention is illustrated in fig5 8 wherein an electrical plug 50 has a plastic plug portion 52 with electrical contacts 52a h the plastic plug portion has a release lever 53 which is pivoted thereto so as to lock and unlock the plug 50 from a mating female socket the plastic portion 51 has a shoulder 56 as shown in fig6 and 8 a metal housing 60 has a top wall 58 and a bottom wall 62 and sidewalls 59 and 61 the front portion of the metal housing 60 has a downwardly extending tab 72 and an upwardly extending tab 71 and inwardly extending tabs 73 and 74 as shown in fig5 and 8 the plastic plug can be inserted into the metal housing 60 such that the tabs 72 71 73 and 74 bear against the shoulder 56 and then a hollow ferrite sleeve.