4 pcs x 6P14P-K Pentode ~EL84 / 6BQ5 USSR TUBES
All tubes are in very good condition and Lightly used.
Strong tested on tube tester . Made in USSR in 1970-1975
You buy what you see in the pictures.
The symbol K at the end of the valve name 6p14p-K means greater
rigidity of electrodes inside the cylinder and longer service life. Such valves are additionally marked on the glass with "USSR quality mark"