Product Description

Vt4cx1500a electronic tube is a network thorium tungsten cathode, forced air cooling, cermet quadrupole. The maximum anode dissipation is 1.5KW, and the maximum operating frequency is 150MHz. Used in VHF band. The connecting ring is led out at the end of the curtain grid, which can play a good isolation role between the anode circuit and the control grid circuit. It is mainly used for class C or class Ab1 linear amplifier, voltage regulator and linear modulator, and can be interchanged with 4cx1500a electronic tube produced by American eimac company.

Specifications︰ 1、 Characteristic parameters
Filament voltage five Filament current 38.5A
Amplification factor (grid curtain grid) five point five transconductance 26mA/V
Maximum operating frequency 150MHz Installation method Axial vertical
Inter electrode capacitance (cathode grounding) input 78pF
output 10.5pF
Cross road 0.25pF
Recommended socket Eimac sk-831 Cooling mode Forced air cooling
Recommended air duct Eimac SK-806 Maximum operating temperature of external surface of anode 250℃
Maximum operating temperature at ceramic metal sealing position 250℃ height 124.5mm
diameter 85.6mm Net weight 850g
2、 Limit application data
DC anode voltage 4000V DC curtain grid voltage 750V
DC anode current 1.0A Anode dissipation 1500W
Curtain grid dissipation 75W Grid dissipation 25W
3、 Typical operating state RF linear amplifier (class Ab1)
DC anode voltage two thousand and five hundred 3900V
DC curtain grid voltage six hundred 600V
DC grid voltage - one hundred and five - 110V
Zero signal anode current two hundred and fifty 200mA
Maximum signal anode current seven hundred and sixty-five 750mA
Maximum signal curtain grid current forty-six 40mA
Peak RF excitation voltage ninety-five 100V
Anode load resistance one thousand six hundred and seventy 2900Ω
Maximum signal anode power output one thousand and eighty 1850W

Advantages︰ 1、 Characteristic parameters
Filament voltage five Filament current 38.5A
Amplification factor (grid curtain grid) five point five transconductance 26mA/V
Maximum operating frequency 150MHz Installation method Axial vertical
Inter electrode capacitance (cathode grounding) input 78pF
output 10.5pF
Cross road 0.25pF
Recommended socket Eimac sk-831 Cooling mode Forced air cooling
Recommended air duct Eimac SK-806 Maximum operating temperature of external surface of anode 250℃
Maximum operating temperature at ceramic metal sealing position 250℃ height 124.5mm
diameter 85.6mm Net weight 850g
2、 Limit application data
DC anode voltage 4000V DC curtain grid voltage 750V
DC anode current 1.0A Anode dissipation 1500W
Curtain grid dissipation 75W Grid dissipation 25W
3、 Typical operating state RF linear amplifier (class Ab1)
DC anode voltage two thousand and five hundred 3900V
DC curtain grid voltage six hundred 600V
DC grid voltage - one hundred and five - 110V
Zero signal anode current two hundred and fifty 200mA
Maximum signal anode current seven hundred and sixty-five 750mA
Maximum signal curtain grid current forty-six 40mA
Peak RF excitation voltage ninety-five 100V
Anode load resistance one thousand six hundred and seventy 2900Ω
Maximum signal anode power output one thousand and eighty 1850W