ISO9000 3-500Z amplifier tube electron tube

Electrical parameters
Filament voltage: 5V
Filament current: 14.5A
The maximum instantaneous filament current: 22A
Magnification factor: 130
Transconductance: 15mA / V
Electrode capacitance:
Anode - the GRID: 4.1pF
Cathode - the GRID: 7.4pF
Anode - Cathode: 0.07pF
Mechanical properties:
Quality: (approximately) 0.25Kg (F)
Installation: vertical, anode terminals up
Cooling: natural cooling
Shell and tube maximum temperature: 225 ° C
Anode sealing at the maximum temperature: 225 ° C
The core columns to seal the access at the highest temperature: 200 °C
Maximum ratings

The maximum anode DC voltage: 4KV
Maximum Anode DC Current: 350mA
Maximum anode dissipation power: 500W
Maximum GRID power dissipation: 20W
In typical operation: class C telegraph
Filament voltage: 5V
Anode DC voltage: 3.5KV
GRID DC bias voltage:-75V
Anode DC Current: 300mA
GRID DC current: 115mA
Anode output power: 850W
Note: generally under matched load can be naturally cooled, but the equipment must be well ventilated, if in a non-matched load, high pressure, high-frequency conditions required for forced air cooling, ventilation should be through the outlet from the tube at the bottom of under the previous air.