This record contains a part from a single channel tube, de assembled into three parts. One part is a metal tube, the other two parts are circular caps which fit into the tube, but only one at a time. The circular caps have pins which are attached to the ceramic component.
Dimensions
Circular cap: 1 1/8 in x 1 1/4 in x 1 1/4 in; Metal tube: 3/4 in x 2 1/2 in x 2 1/2 in