The Electron tube 7T85RB is a forced air cooled, ceramic-metal triode containing a thoriated tungsten carbide cathode intended for use in industrial high frequency heating service as an oscillator.


The Electron tube 7T85RB is a forced air cooled, ceramic-metal triode containing a thoriated tungsten carbide cathode intended for use in industrial high frequency heating service as an oscillator.
|
Cathode |
Thoriated Tungsten |
|
Filament Voltage |
6.3V |
|
Filament Current |
35A |
|
Transconductance (Ia=0.35A) |
5mA/V |
|
Amplification Factor |
21 |
|
Interelectrode Capacitances: |
|
|
Filament to Grid |
15pF |
|
Filament to Plate |
0.5pF |
|
Grid to Plate |
13pF |
Mechanical
|
Overall Height |
215mm |
|
Overall Diameter |
130mm |
|
Net Weight |
1.5kg |
|
Mounting Position |
Vertical |