Handwritten in pencil on top of the metal disc area.
overall: 1 1/8 in x 1 1/4 in x 1 1/4 in
This record contains one single channel tube part. It is composed of a disc-like piece with a cylinder protruding from its center. Underneath the metal disc is a ceramic component with brackets and silicon reflective pieces, with a copper mask on its bottom. There are six pins and several wires coming through holes in the metal disc. The pins have coiled wires attached at the ends. All the wires and pins have ceramic tube guards around them.