Adjusting device convenient for adjusting travelling wave tube cathode operating voltage on transmitter

The utility model discloses an adjusting device convenient for adjusting travelling wave tube cathode operating voltage on a transmitter. The adjusting device comprises a male connector cooperatively connected with a pin female connector for adjusting the travelling wave tube cathode operating voltage on the transmitter, and the male connector is connected with the a voltage regulator. According to the adjusting device convenient for adjusting the travelling wave tube cathode operating voltage on the transmitter, the voltage regulator is cooperated with circuits on the transmitter, the travelling wave tube operating voltage can be adjusted by directly adjusting the voltage regulator, so that the operating voltage of the travelling wave tube for normal operation can be obtained, and adjustment is convenient. When a travelling wave tube equipped with the adjusting device is completely tested, the cathode operating voltage can be adjusted according to actual test conditions, so that the whole machine can be in a best operating state and has optimum performance.