Two identical cards share this catalog number. The card is a 'DBW' card whose function is unknown. The module consists of two rows of components, jumpers, and three transistors (one of which is mounted on a red anodized aluminum heat sink).
Date
1959 ca.
Manufacturer
International Business Machines Corporation (IBM)
Identifying Numbers
Other number
EC 111272
Engraved on the conmponent side of the card (engineering part number?)
