The object is a module with nine sockets, all of which are populated with vacuum tubes of varying size. 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 3 IBM inspection stamps on the chassis.
Date
1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
000406
The number is stamped on the chassis.
Other number
6537
The number is handwritten on a round paper sticker located on the indside of the handle.
Other number
8087615
The number is stamped on the chassis.
Other number
B02 E K
The number is printed on a paper label located on the handle.
Other number
D 3087615 000406
The number is printed on a paper label located on the handle.