Electronic Tubes, Magnetrons, Resistors manufacturer / supplier in China, offering High-Quality Power Triode 3-500z Transmitting Tube for Kenwood Tl 922 as Oscillator, High Quality Air Cooled Emitting Tube 3cx6000A7 Vacuum Triode Used as Oscillator (YU-148) Equivalent to Eimac, High Quality Air Cooled Triode 3cx6000A7 Vacuum Amplifier Tube Used as Oscillator (YU-148) Equivalent to Eimac and so on.