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.
