This module consists of transistors, resistors, capacitors and diodes. There is a label across two ten pot resistors saying they are bad. Also has printed in white a copyright "SDS-66".
Manufacturer
Scientific Data Systems (SDS)
Identifying Numbers
Other number
131181
Printedn white on top of module on component side.
Other number
132371 E
Printed in white on right side of module on component side.
Other number
13794
Hand written on round red label on component side.
Other number
13806
Hand written on round red label on circuit side.
Other number
941 F
Stamped in black at top of module on circuit side.
Other number
WT21
Printed in white on top of module on component side.