GMI-90 / ГМИ-90
Got a GMI90 / ГМИ-90 tube + socket.
Just a small demonstration of the tube. Fortunately all filaments work!
Data:
Cathode type: oxide,indirect heating
Application field: pulse feeding to magnetron
Envelope: glass with base
Cooling method: air
Dimensions: 250mmx145mm
Mass: 1,3kg
Filament voltage: 25V
Filament current: 6,5 - 7,8A
Pulse duration: 3uS
Output power: 140W
Maximum anode voltage: 33kV