The object is a module with nine sockets, 3 are populated with vacuum tubes of varying size, and 6 have plugs. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 13 printed circuit boards, all of which are wired to 3 male connectors at the bottom of the chassis. There are two IBM inspection stamps on the chassis.
Date
1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
000218
The number is stamped on the chassis.
Other number
3087061
The number is stamped on the chassis.
Other number
B02 P H
The number is printed on a paper label that is attached to the handle.
Other number
D 3087061 000218
The number is printed on a paper label that is attached to the handle.
