two way rectifier tube 5U4G, U52, 5Ц3С, 5U3C, 5Z3, CV684, 5U4GB, GZ31, VT-244
two way rectifier tube GZ34, CV1377, 5AR4, GZ34s JJ
two way rectifier tube EZ80 = 6V4 und EZ81 = 6CA4, UU12, U709
mercury rectifier tubes
other rectifier tubes, single rectifier, one way rectifier valves
stabilisation tubes, voltage regulation valves
