This record contains five (5) Standard Modular System (SMS) cards type: Negative Binary Trigger Card model 1. This card was used with the IBM 7090 system. The circuit card is made of an epoxy paper laminate material. "BAD" in written in pencil on the connector side.
Date
1959 ca.
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
B 491403
Printed in copper on printed wiring side
Other number
EC 107646
Etched on side edge of board, component side
Other number
FF
Card Code. Etched on side edge of board, component side
Part number
371411
IBM part number. Etched on side edge of board, component side