Matched Pair Of 6N23P-EV Vacuum Tubes.
Same Date. Reflector Factory. 1972.
O-Getter. Military. OTK and Rhombus Stamp.
The parameters on the sent tubes may differ from the photo.
Ye (Russian: Е) – Extended service life.
V (Russian: В) – Increased reliability and mechanical ruggedness (such as low susceptibility to noise and microphonics).
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