The record contains a module with 12 coax connectors and two multi-pin connectors. The module contains sockets for ten vacuum tubes 4 of which are populated. There are two white indicator lights affixed to the back bottom right corner. A paper reading "NR3138-Box 1-#18 203 Flip Flop" is taped to the module.
Date
1951
Identifying Numbers
Model number
203
Stenciled on the top left corner of module and on the back board.
Model number
203 DUP 1
Stenciled on the top left corner of module and on the back board.
Other number
F3-7
Handwritten on paper label located on the back right bottom corner of module.
Other number
NR3138
Handwritten on paper taped to front of the module.
Other number
NR3138 DUP 1
Handwritten on paper taped to front of the module.
Serial number
3
Stenciled on the top left corner of module and on the back board.
