These are quick action semiconductor waveguide switches with electrical control. These devices are also used as p-i-n diode modulators having one or several switchover and modulation channels.

Semiconductor devices applied within semiconductor generators, modulators and attenuators, as well as within waveguide commutation installations

Field transistor-based power amplifiers produced in a hybrid/integral assembly. These modules are intended for the application within radars working at the centimeter waveband when the radar's input receives continuous and pulse signals. Input & output are waveguide.
Coolinge - natural

Coaxial waveguide controller attenuators designated for controlling the VHF-signals within waveguide leads.

Solid-state stabilized low-size generators based on Gunn diodes or IMPATT-diodes, and millimeter waveband functional modules.