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RE: Tube rolling question on phono preamp

Posted by dandaroy on October 26, 2020 at 19:55:17:
How did you figure that they were JJs. I heard they were Tungsols. If you take top cover off, you should be take the tube off the sockets, but the tube coolers are fixed to the stock tubes, so you have replace the tube without any coolers on them or buy new coolers. The general consensus is that coolers are BS. I just got the unit, so when I tube roll I will just replace the tubes without any coolers.