the CV9333 is a reflex klystron operating at X-Band and generating 35 mW of RF for local oscillator use in radar receivers. It can also be used for low power transceivers.
The top cap is the reflector that directs the electron stream back into the resonant cavity. It would be at -90 to -175 Volts in operation. Electrical variation of reflector voltage gives a tuning range of 40 MHz. For frequency modulation the modulating voltage would be superimposed on the reflector voltage.
The resonator operates at 300 Volts and draws 25 mA. The RF output from the resonant cavity is taken via the probe into a length of WG16.
The mechanical tuning operates by changing the size of the resonator cavity. The screw has left and right hand threads to symmetrically open or close the springs. The cavity dimension change is tiny.
The output probe replaces pin 4 on the Octal base.
The serial number. The rod on the right is the fixed point in the cavity adjustment.
The dielectric surround and probe wire.
The thin metal tube envelope is 27 mm in diameter and, excluding the IO base pins, is 56 mm tall.
