Transmission line cylindrical connector assembly

A tool string electrical transmission line connector assembly, comprising

• a cylinder adapted for mounting onto a shoulder within an axial bore wall of a tool string component;
• the cylinder comprising an inside axial side wall spaced apart from an outside axial side wall joining top and bottom surfaces;
• the outside axial side wall comprising an axial channel open to the outside axial side wall intersecting the bottom surface and intersecting a housing open to the outside axial side wall and open to the top surface,
• the axial channel comprising opposed axial outside edges at least partially protruding over the axial channel forming opposed tab closures, the respective axial protruding outside edges bend inward over the axial channel closing the axial channel when the cylinder is mounted within the axial bore, wherein
• an electrical transmission line connector is disposed within the housing, and wherein
• an electrical transmission line is disposed within the axial channel and connected within the housing to an adjacent electrical transmission device.