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MELZ 6N9S METAL BASE 6SL7 5691 33S29B RARE TUBES NOS MATCHED PAIR TESTED, US $113 – Picture 0
MELZ 6N9S METAL BASE 6SL7 5691 33S29B RARE TUBES NOS MATCHED PAIR TESTED, US $113 – Picture 0

Melz 6n9s Metal Base 6sl7 5691 33s29b Rare Tubes Nos Matched Pair Tested

US $113

  • Warszawa, MAZOWIECKIE, Poland
  • Jun 13th
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 Matched Pair (2 tubes) of  NOS  MELZ metal base 6N9S - 6SL7 - 5691 These are pretty rare and beautiful sounding 6SL7 tubes great value for the price In my personal opinion they are one of the  best sounding 6SL7 even in comparison with RCA red base 5691, Swedish STANDARD 33S29B I have compared all these tubes by my own and MELZ 6N9S are in a row with the above tubes. great low frequency, very low and solid bass, pleasure sounding tubes for long hours of listening. perfect shape new, I think they were never used, both tubes have same code XII-53 from December 1954 printing is pretty weak, but operating the tubes under the light you can clearly read: "MELZ 6N8S XII - 54" these tubes were made at Moscow Electron Tube Factory in December 1954  almost perfectly balanced and matched:  tube1 - 2,3/2,4mA   tube2 - 2,3/2,3mA where 100% for the new tube is 2,3mA black shining plates curved metal plate full getter, metal base you will get the tubes from the pictures, .price is for the pair (2 tubes) I always send the tubes by priority registered mail with tracking number within hours after receiving payment                                                                                                                               Santic - Ain’t Gonna Hurt Nobody

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