The object is a module with nine sockets, 4 are populated with vacuum tubes of varying size and 5 are plugged. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 14 printed circuit boards and two power resistors, all of which are wired to 3 male connectors at the bottom of the chassis. There are 2 IBM inspection stamps on the chassis.
Date
1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
000171
The number is stamped on the chassis.
Other number
3087059
The number is stamped on the chassis.
Other number
6104
The number is handwritten on a round paper sticker located inside the handle.
Other number
6105
The number is handwritten on a round paper sticker located inside the handle.
Other number
B02 N G
The number is printed on a paper label located on the handle.
Other number
D 3087059 000171
The number is printed on a paper label located on the handle.