This object consists of one (1) logic module with four, black plastic, male connectors along one side. A "1" is printed in copper at the center of the connector-edge, component side; and in solder at the connector-edge, solder-side. The substrate is covered on both sides by a gridded-field of square-shaped solder marks. There are four connections made with yellow wire on the solder-side.
Date
1965 ca.
Manufacturer
International Business Machines Corporation (IBM)
Identifying Numbers
Other number
085
Printed in white on substrate, connector-edge, component-side
