9/16/2023 0 Comments 6n2p pin 9 to ground![]() Either way, the filaments light up and electrons fly around!! Anyway, just wondering if you ever tried it and how it worked out for you. Either tube, the 12AX7 or the 6N2P, will run on AC or DC on the filaments.so that makes absolutely no difference whatsoever other than any potential 'noise' issue that you may be trying to reduce by running DC. And, it's too late now to have them 're-pin' the tube as that would essentially make obsolete anything and everything that ever used the 6N2P in it's current configuration. Don't know why.and it probably makes little difference. In the 6n2P you only have the option of running the tube in 6 volts, so the Russians simply decided to use pins 4 and 5 for each of the filament supply connections. The only difference is that the 'two connections' are made by bridging together pins 4 & 5, which now becomes one connection to the filament supply, and then you use pin 9 for the other connection. It's just two filaments wired in parallel, which is exactly what the 12AX7 tube is when you run it in 6V mode. ![]() In this tube, it's only two connections that light up the filament, and it's NOT polarity sensitive. This is just like any other 'polarity sensitive' wiring, where you have to have the positive and negative properly orientated. ![]() Hopefully you figured out that you CAN wire the tube socket using DC. I don't know if you ever managed to complete your 'test' here, but if so, I'm curious about your results. ![]()
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