Product Description

Vt3cx4500f3 air-cooled triode is a power triode with medium amplification factor, forced air cooling, thorium tungsten carbide cathode and cermet structure. The maximum anode dissipation power is 6kW, the maximum grid dissipation is 300W, and the maximum operating frequency is 75MHz. It is mainly used as amplifier, oscillator or modulator, and can obtain high power output at medium voltage. It can be interchanged with 3cx4500f3/ yu108 electronic tubes produced by eimac company of the United States.
In industrial applications, the filament of the tube is led out by flexible wires, and the grid is connected with the equipment by a solid flange.

Specifications︰ Characteristic parameters
Filament voltage 7.0±0.35V Filament current (at 7V) 78±3A
Amplification factor twenty-two Maximum diameter 155.58mm
Inter electrode capacitance (cathode grounding) input 35±5.2pF
output 0.9±0.3pF
Grid anode 20±3.2pF
Maximum operating frequency
(continuous wave) 75MHz Installation method Vertical installation/
Anode up or down
Cooling mode Forced air cooling Maximum temperature of anode outer surface 250℃
Maximum temperature of filament and socket connecting wire 150℃ Maximum length 468.3mm

Advantages︰ RF power amplifier or oscillator (Class C)
Anode voltage
8000Vdc
Anode current
2.75Adc
Grid voltage
-705Vdc
Grid current
0.68Adc
Peak positive grid voltage
346V
Excitation power
710W
Anode input power
22kW
Anode dissipation power
4.8kW
Anode output power
15kW
Load resistance (approx.)
1437Ω
Grid resistance
1040Ω
Extreme service data, RF power amplifier or oscillator (Class C telegraph or FM)
DC anode voltage
9000V
DC grid voltage
-1000V
DC anode current
3.0A
DC grid current
0.8A
Anode dissipation
6kW
Grid dissipation
300W

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