Magnetic tape sense amp 1536D System Building Block
Digital Equipment Corporation (DEC)
Etched on solder side
Engraved on end
overall: 1/2 in x 7 in x 4 1/2 in
On one side of the frame is a green tape label reading "QC APPROVED BY" and indecipherable initials. On the other side is an orange tape label that obscures the serial number if any, reading "MODEL 1536-D DATE 12/26/63".