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In Reply to: RE: matched power tubes and bias posted by barondla on May 09, 2008 at 17:52:16
You don't need precision matched sets, but you want them to be reasonably close. I routinely see 50% or more variation in power tube matching parameters - that would be too much! So a decent match is all you need, just to avoid getting tubes at the opposing extremes, so to speak.
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