Packaged low capacity O-type continuous backward wave lamps. The devices have electronic cm-waveband frequency tuning feature and are intended for application as heterodyne generators with electronic frequency re-tuning.

Packaged continuous traveling wave lamps. Designated to work as VHF capacity amplifiers of centimeter waveband.
Compulsory air cooling.

Backward wave lamps (BWL) with periodical electrostatic focusing and electronic frequency re-tuning by two electrodes with waveguide energy output. Intended for use as heterodynes or low-noise VHF generators.