Circular cap: 1 3/8 in x 1 3/8 in x 1 3/8 in; Metal tube: 3/4 in x 1 1/2 in x 1 1/2 in
This record contains a part from a single channel tube, de assembled into three parts. One part is a metal tube, the other parts are circular caps which fit into the tube. The circular caps have pins with ceramic casings that protrude from both sides, and a protruding metal cylinder on one side. The other side of the cap has several different components including two reflective piece, a copper piece and a ceramic piece.