There is a blue "PDP-10 DEFECTIVE MODULE" tag attached that reads: "USER: BNL #1" "TYPE: 6132" "DEVICE: 166" "LOC.#: 3K9" "DATE: 2-1-73" "REMOVED BY: W.B. JOHNSON" "DESCRIBE FAULT: OUTPUT OSCILLATING". The number "3K10" is written to the left of the part number.