Vacuum tube module
University of Wisconsin. Department of Physics
||On metal frame
overall: 1 3/4 in x 8 1/2 in x 7 1/4 in
Fully populated with six tubes in six sockets. Written adhesive on handle is "12-14-60 JGS 100KC +75, -62." Note with module says that this module might be part of X1040.90 WISC.