8pcs 6J2P-EV, 6Ж2П-ЕВ NOS Russian gold grid tubes equiv. 6AS6, 6F33 OTK military

HF pentode with brought out suppressor grid - pin 7 (not connected with cathode - pin 2 inside the tube)

Gold plated control grid see picture.

Attribute -EV indicates tube with longer lifetime more than 5000 hours, higher reliability and mechanical endurance.