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Questions about tubes and gear that glows. FAQ

You just don't get it regarding the 8B output stage...

Look at the schematic. How did the designers choose to deal with g3 and the cathode? Why did they do what they did? Does a 6L6 or KT77 allow this circuit to operate as designed? Just because the thing operates without blowing up doesn't mean that it operates as it should. Web references from persons unknown changes nothing in this regard. You could use automatic transmission oil in your car's engine and it would probably run okay but that doesn't mean you should. Go ahead and roll 6L6s into your 8B and sure, it will probably work. You may even like it. But it ain't an 8B any more.

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