Recently, I bought a PCB from A* site. Unfortunately the seller didn't send me the exact circuit diagram, and I had to draw it myself. I'm a beginner at vacuum tubes, so this connection is very unfamiliar. I'd appreciate it if someone could verify this. Is this diagram safe and accurate?
Paul
Paul
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And a series capacitor and a resistor to ground in the output circuit. Don’t connect it like this or you’ll get some smoke out of your power amp.
Irrespective the values of the components, the preamplifier has to look like this:
Irrespective the values of the components, the preamplifier has to look like this:
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Your drawing is what there is on the board, that's ok.
But what is the perpose of this? The 6N5P is a little tube, not what is on the board, the 6080 and 6N13P are.
If the intention is to connect an output transformer, you will get round 80mA per side with a 6N13P.
Mona
But what is the perpose of this? The 6N5P is a little tube, not what is on the board, the 6080 and 6N13P are.
If the intention is to connect an output transformer, you will get round 80mA per side with a 6N13P.
Mona
That's the screwy part. The Chinese 6N5P is equivalent to the Russian 6N13P and the western 6080/6AS7. The Russian 6N5P (6Н5П/1539) is a miniature double triode, that as far as I can gather, has no direct western equivalent.
Is it a cathode follower? Probably not, as there are bypass capacitors on the cathode. There's also no bias. If it's a grounded cathode stage, it's not gonna work without load resistors and B+ to the tube.
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Russian power tube type is 6N5S (6H5C) and is similar to 6AS7G. Russian small signal dual-triode is 6N5P (6H5n).
Chinese use suffix P for power tubes and J (or no suffix) for small signal tubes, which really confuses things.
Chinese use suffix P for power tubes and J (or no suffix) for small signal tubes, which really confuses things.
