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In the description, it says "Built to rigid military standards, the 5881 will tolerate higher voltages than any other 6L6." Then later, it says "max plate voltage is 250V. Other 6l6s are rated for 500 plate volts. This doesn't make any sense. Please explain. Thank you.
Asked by Anonymous on November 11th, 2016.
Hello, this tube is 500 volts.
Typically, the 5881 has a lower voltage tolerance as you noted 250 bs 450 for a typical 6L6. Another distinction being the 5881 is generally rated at about 23 watts whereas the 6L6 is generally about 30 watts. It’s important to note that while you can “safely” use a 6L6 in place of a 5881 without amp modification when you use a 5881 in place of a 6L6 your amp may burn them out prematurely.
Is this rated as a hard, medium, or soft tube?
Asked by Anonymous on November 17th, 2016.
We can put together a matched quad in low, medium, or high. Simply send us a note when you place your order.
The last time I bought two sets of matched quartets, one set showed lp 36 GM 4300, the other was lp 44 GM 4700. How do I know what soft/medium/high ratings are and what I should ask for when I place my next order? Also, do I need to leave them in the amplifier, turned on for an extended period to burn them in?
Asked by Anonymous on May 13th, 2020.
Our Sovtek 5881WXT tubes are Apex matched, which provides ratings for "Current" and "Transconductance" and would not have our tube sets labeled with "GM" and "LP." We are unable to speak about other matching services and the numbers they use. Using general terms like low, medium, and high numbers will be sufficient for us to be able to understand what you need and pull accordingly.