Made in the USA, 1960-70's by Sylvania. These have silver risers on sides, flat disc shield and O-getter. With its smooth and liquid sound, a good upgrade over most current production 6DJ8/6922 type tubes. Some tubes have yellow Sylvania label and some are labeled for RCA. Please indicate the label of your choice when you order.

Quantity in Stock : Singles!
Price : Grade A @ US$25,00/ea ; US$55,00/matched pair
          Grade B @ US$20,00/ea ; US$45,00/matched pair

Grade A - The best in the stock. Lowest noise and microphony with the tightest balanced sections we have available. This is typically 10% or often tighter given the large volumes of our stock.
Grade B - Low noise and microphonics with a section balance typically between 15% and 20%, but may be higher depending on available stock.
Grade C - Lowest noise but slightly microphonic. Section balance will be similar to Grade A or B. This grade is only suitable for use in the driver stage of an amplifier, or the output/buffer stage of a DAC or CD Player.


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