6N9S / 6H9C / 6SL7 / 6N9P / 6N9 MATCHED PAIR (2pcs) TUBES NEW. these tubes are interchangeable with tubes 6SL7 / 6N9P / 6N9. 6N9S (6Н9С) double triode 100% New Item. Lot of 2 (Matched & Balanced Pair ).
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