The object is a module with seven sockets, six are populated with vacuum tubes of varying size and one is plugged. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 9 printed circuit boards and 2 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
1956-11
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
000407
The number is stamped on the chassis.
Other number
3087009
The number is stamped on the chassis.
Other number
6018
The number is handwritten on a round paper sticker located on the inside of the handle.
Other number
6019
The number is handwritten on a round paper sticker located on the inside of the handle.
Other number
B02 N D
The number is printed on a paper label that is attached to the handle.
Other number
D 3087009 000407
The number is printed on a paper label that is attached to the handle.