The record contains a vacuum tube module with a handle attached to a metal chassis. Beneath the handle are several test points and variable resistors. "All Tubes type Z-2177" is stamped into the top of the module, but "KAM-6414W" is printed on each of the 24 tubes.
Identifying Numbers
Other number
3083698
Stamped on the metal chassis and typed on a label on the handle.
Other number
803
Typed on a label on the handle.
Other number
H00461
Stamped on the metal chassis and typed on a label on the handle.
