GU-70B ГУ-70Б soviet Air Forced Metal Ceramic Vacuum Tetrode Tube 4CX250B
Cooling – air, forced, 45 m3/h. Life cycles: Minimum 1000 h. - input: maximum 29. We will make every effort to fix any problem. Racking power: Minimum 250 W. - output: maximum 7.5.