The RD 250 VM is a vapour cooled high-power triode with coaxial arrangement of electrode terminals, manufactured in a metal-ceramic technology, suitable for use at frequences up to 100 MHz.
The maximum anode dissipation rating is 250 kW.
The RD 250 VM is primarily intended for use as an R.F. or A.F. power amplifier or oscillator in broadcast transmitters and in industrial generators.