High power klystrons are metal-ceramic tubes for use in output stages of transmitters in u.h.f. television service. The tubes operate in external cavities in the frequency band 470 - 790 MHz. Maximal (sync) output power is 6 to 25 kW, power gain 30 to 40 dB and bandwidth 8 MHz/1 dB (according to the ENGINE)

In the transmitter klystrons work in the circuit assembly (PS..) containing coils, which produce dc axial magnetic field for beam focusing. A solid coaxial line serves for the coupling of the high power of the output cavity.

In all ENGINEs a modulation anode is built in, enabling tubes to operate at a lower power levels in sound transmitters using the same voltage as the vision amplifier.

 

A built-in ion getter pump, which works in a separate ferromagnetic circuit, is unified for all the ENGINEs.

 

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