Continuous operation oscillating klystrons of cermet structure; low-noise, medium power, centimeter waveband.
The devices have a forced fluid cooling system.

Low voltage subminiature reflex (generator) klystrons of continuous operation and cermet structure intended for operation as fixed frequency heterodynes in the centimeter waveband. Power output is effectuated through a waveguide system. The devices have air cooling systems, with forced cooling in case of KS-4A and KS-11A klystrons, which is realized via heat sink at the attaching points.