Product Description

Vt4cx3000a air-cooled tetrode is a cermet structure, thorium tungsten cathode and forced air-cooled power tetrode. It is specially designed for class Ab1 linear amplifier in audio or RF applications. Its low intermodulation distortion makes it suitable for single sideband operation. It can also be used for class C RF power amplifier and anode modulated RF power amplifier. Operating in Ab1 status will produce a minimum power output of 5300w. The third-order intermodulation distortion is better than 32dB, and the fifth-order intermodulation distortion is better than 37db. It can be interchanged with 4cx3000a electronic tube produced by eimac company of the United States.

Specifications︰ 1、 Characteristic parameters
cathode Thorium tungsten Heating mode Direct heating type
Filament voltage 9V Filament current 41.5A
Amplification factor (g1-g2) five point five
Interelectrode capacitance
(cathode grounding) input 130pF
output 12.5pF
Between grid and anode 1pF
Interelectrode capacitance
(grid ground) input 61pF
output 12.5pF
Between grid and anode 0.10pF
Installation position Axial vertical / pipe base up or down Net weight 2.5kg
Maximum temperature at sealing position 250℃ Cooling mode Forced air cooling
2、 Limit application data
Maximum operating frequency (continuous wave) 150MHz Maximum dissipation power of anode 3500W
Maximum dissipation power of curtain grid 175W Maximum grid dissipation power 50W
3、 Maximum rating and typical operating conditions
work
category Equipment model Limit rating Typical operating conditions
Positive pressure (V) Positive current (a) Positive pressure (V) Secondary grid voltage (V) Plate flow (a) Excitation power (W) output
（W）
C RF amplifier (30MHz) seven thousand two seven thousand five hundred one point nine forty-one eleven thousand
C Plate modulated RF amplifier (30MHz) five thousand one point four five thousand five hundred one point four thirty-one five thousand seven hundred and fifty
AB RF linear amplifier seven thousand two seven thousand eight hundred and fifty one point seven - 5300+
AB Audio amplifier or modulator six thousand two six thousand eight hundred and fifty 3.1* - 12400*

Advantages︰ 1、 Characteristic parameters
cathode Thorium tungsten Heating mode Direct heating type
Filament voltage 9V Filament current 41.5A
Amplification factor (g1-g2) five point five
Interelectrode capacitance
(cathode grounding) input 130pF
output 12.5pF
Between grid and anode 1pF
Interelectrode capacitance
(grid ground) input 61pF
output 12.5pF
Between grid and anode 0.10pF
Installation position Axial vertical / pipe base up or down Net weight 2.5kg
Maximum temperature at sealing position 250℃ Cooling mode Forced air cooling
2、 Limit application data
Maximum operating frequency (continuous wave) 150MHz Maximum dissipation power of anode 3500W
Maximum dissipation power of curtain grid 175W Maximum grid dissipation power 50W
3、 Maximum rating and typical operating conditions
work
category Equipment model Limit rating Typical operating conditions
Positive pressure (V) Positive current (a) Positive pressure (V) Secondary grid voltage (V) Plate flow (a) Excitation power (W) output
（W）
C RF amplifier (30MHz) seven thousand two seven thousand five hundred one point nine forty-one eleven thousand
C Plate modulated RF amplifier (30MHz) five thousand one point four five thousand five hundred one point four thirty-one five thousand seven hundred and fifty
AB RF linear amplifier seven thousand two seven thousand eight hundred and fifty one point seven - 5300+
AB Audio amplifier or modulator six thousand two six thousand eight hundred and fifty 3.1* - 12400*

Export Markets︰ Designed for class Ab1 linear amplifiers in audio or RF Applications

Payment Details︰ Delivery upon payment

Min Order︰ 10

Ship Date︰ two weeks later

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