6P14P-V (6П14П-В) / 6BQ5 / EL84 / 7189 Tubes tested. Matched quad. NOS. Gold grid.
Quality Control Department stamp. (ОТК)
Military acceptance stamp. (ВП)
Available 100pcs. Reflector. Rare 1960s. 
Will combine shipping by default when possible.
Please message me if you have any questions.
There are many other tubes available. Ask.

V (В) - Tube of increased mechanical strength and reliability.