Vt3cx2500f3 and vt3cx2500h3 electronic tubes are of cermet structure, thorium tungsten carbide cathode and forced air-cooled triode. Except that its filament and grid lead flexible electrode leads to the base, the rest are the same as vc-th5-6 electronic tube. The maximum operating frequency of the tube is 75MHz, which is mainly used for industrial RF heating equipment.
Vt3cx2500f3 electronic tube can be interchanged with 3cx2500f3 electronic tube produced by American eimac company, and vt3cx2500h3 electronic tube can be interchanged with 3cx2500h3 electronic tube produced by American eimac company.