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Re: On Mixing output tubes -- Is this a good idea?

Posted by jedinvest on January 22, 2004 at 11:11:45:
That is the conventional wisdom. As far as running tubes in parallel, that is probably the case as you describe. However, running a different tube, or set of tubes, on each leg of the Push-Pull output, should not have any problem if the tubes are biased individually. If you consider that each tube has its own distortions and the cross-over region distortion is probably one of the biggest, then there is nothing wrong at all in this arrangement.
What is in question is whether a tube with good bass when mated with a tube with a good top-end gives you both good bass and good top-end or neither. I don't have the patience to find this out immediately, but in the future I will consider the opportunity when it arises to try out these combinations.