The object is a module with nine sockets all populated with vacuum tubes of varying size. All the tubes are framed by a metal handle. In the chassis there are 13 phenolic circuit boards. The boards are wired to male connectors at the bottom of the chassis. Also printed on the chassis are two inspection stamps reading "K IBM" followed by a number.
Date
1958 ca.
Manufacturer
International Business Machines (IBM)
Identifying Numbers
5054
The number is handwritten on a circular paper sticker that is affixed to the inside of the module's handle. The number was covered by a sticker, bagged seperatly, with numbers 6053 and 6057.
5055
The number is handwritten on a circular paper sticker that is affixed to the inside of the module's handle. The number was covered by a sticker, bagged seperatly, with numbers 6053 and 6057.
5056
The number is handwritten on a circular paper sticker that is affixed to the inside of the module's handle. The number was covered by a sticker, bagged seperatly, with numbers 6053 and 6057.
5057
The number is handwritten on a circular paper sticker that is affixed to the inside of the module's handle. The number was covered by a sticker, bagged seperatly, with numbers 6053 and 6057.
Other number
000071
The number is stamped on the chassis.
Other number
3087032
The number is stamped on the chassis.
Other number
B02 D E
The number is located on a paper label that is affixed to the module's handle.
Other number
D 3087032 000071
The number is located on a paper label that is affixed to the module's handle.
