Manufacturer: JAMES MILLEN Manufacturing Co., Inc. (USA)
Model: 90915, S#71
Vintage: 1956
Purpose: Oscilloscope
Condition: Working
Comments:
This scope is bult into a case with front cover / door. This is not typical for Millen scopes. There is not much information available about this scope. It is possible that this was only a prototype for military use. The CRT is a 5AQP7 with long persistence. The probe is a "PL-55" with the same serial number than the scope.
Removing the scope from the case is a little tricky because the screws are somewhat small for the weight of the chassis.
The front panel is isolated. This is fine as long as no parts or wires get lose and may touch the front panel.
It is the only scope I know of, where you can change the color of the scale illumination, here between red and white.
Model: 90915, S#71
Vintage: 1956
Purpose: Oscilloscope
Condition: Working
Comments:
This scope is bult into a case with front cover / door. This is not typical for Millen scopes. There is not much information available about this scope. It is possible that this was only a prototype for military use. The CRT is a 5AQP7 with long persistence. The probe is a "PL-55" with the same serial number than the scope.
Removing the scope from the case is a little tricky because the screws are somewhat small for the weight of the chassis.
The front panel is isolated. This is fine as long as no parts or wires get lose and may touch the front panel.
It is the only scope I know of, where you can change the color of the scale illumination, here between red and white.
Documentation:
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