This record contains one (1) Standard Modular System (SMS) card type: Three-Way and Type B (out-of-phase load). There is handwriting in pen on the component side that reads "BAD".
Date
Circa 1959
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
403
Etched on side edge of board, component side
Other number
491177
Printed in solder on printed wiring side
Other number
DE YY
Card and Cap Connection Code. Etched on side edge of board, component side
Other number
EC 109897
Etched on side edge of board, component side
Other number
YBP07KUL2
Etched on side edge of board, component side
Part number
371323
IBM part number. Etched on side edge of board, component side
