Artifact Details

Title

SMS card DF YU

Catalog Number

102716839

Type

Physical object

Date

1959 ca.

Manufacturer

International Business Machines (IBM)

Identifying Numbers

Other number DF YU Card and Program Cap Connection Code. Printed in solder on printed wiring side of card
Other number EC 105815 Stamped on side edge of one board, component side. Possibly an 'engineering change' number
Other number EC 108540 Stamped on side edge of one board, component side. Possibly an 'engineering change' number
Other number EC 113096 Stamped on side edge of one board, component side. Possibly an 'engineering change' number
Part number 371345 IBM part number. Stamped on side edge of board, component side

Dimensions

overall: 4 1/2 in x 2 5/8 in x 3/8 in

Description

This record contains three (3) Standard Modular System (SMS) cards type: Diffused Junction P to N Buffer Converter. This card was used with the IBM 7090 system. The circuit card is made of an epoxy paper laminate material. "BAD" is written in pencil on one of the card's component side.

Category

Component/module

Credit

Gift of Paul Pierce

Lot Number

X7021.2014