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matched pair 6K4P-E - (NIB)
Matched pair of vintage 6K4P-E (6К4П-E) tubes from manufacturer NEVZ, Novosibirsk (RU). Tested and measured with the L3-3 tube tester and matched in pairs. Long life pentodes (minimum of 5000 operating hours under prescribed conditions). 6K4P-E is a direct replacement for the chinese 6K4 (Shuguang) tubes which are commonly used in many chinese made headphone amplifiers and it is also very similar to the european EF93 and 6F31 tubes, but it has different connections. New in box, directly from the old reserves. Year of production: 1960 (please look at the gallery pictures).
(we reserve the right to change the description and specifications without prior notice)