The unit is a metal panel bearing sockets for 10 octal tubes, four of which are populated, and 12 BNC connectors. There are two power connectors on the left side. On the bottom there are two indicator lights, one for each flip flop.
Date
1951
Manufacturer
Massachusetts Institute of Technology (MIT)
Identifying Numbers
Model number
203
Printed in white in the upper left corner.
Other number
F13-8
Handwritten on a white sticker at the back of the unit.