Russian triode tube GU-5B generation and amplification of HF oscillations at frequencies up to 110MHz with an output power of at least 3.5kW. Manufacturer: RYAZAN (city of Ryazan) / NOS.
The Russian GMI-10 tetrode is designed for use in pulse modulators with anode pulse voltages up to 9kV and pulse currents exceeding 13A. The anode dissipation power is 41W. It is used in pulse radio transmitting devices