Artifact Details


SAGE light pen

Catalog Number



Physical object


ca. 1958


overall: 3 1/4 in x 7 in x 83 in; overall: 3 1/4 in x 12 in x 11 1/2 in


This is a light pen from SAGE. It is actually shaped like a gun with a cylindrical handle, cylindrical barrel, a small hole at the front of the barrel, and a microswitch trigger at the rear of the handle covered with a copper colored metal strip. There is a black front cylindrical sight with a lens at the black connected to the barrel via a small cubical box, and a clear plastic rear sight that had a hole to sight through.
There are two cables connected to the bottom of the handle. One is a black coax cable with a male BNC connector at the far end that has a female-to-female adapter plugged in, and the other is has 12 color coded stranded wires with yellowed translucent sheath with a connector that has two rows of 6 bladed pins and 2 round keying pins between the rows. The connector housing also has a potentiometer adjustment protruding from it.

Both handle and barrel have been spray painted beige, while the front sight is black anodized. The rear plastic sight has also been painted beige.




Gift of the Digital Equipment Corporation

Lot Number