Vacuum tubes
Foreign NotationRussian Notation
INP4-3/60A
INP4-5/60A
INP4-5/75A
INP5-7/120A
INP5-7/90A
ISSH-1.4-630A
ISSH-5
IV-11
IV-12
IV-18
IV-21
IV-22
IV-26 tip 1
IV-26 tip 3
IV-27M
IV-28A
IV-3A
IV-6
IV-8
IV-9