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Biasing multiple EL84s

Interesting post by Scholl - but why should this be such a huge issue? As long as the draw is somewhere between 10 and 12v on the cathode, the valve should be within operating conditions. Obviously matching is going to help, but surely it's not a fine art? I spoke to the ex-Beard designer (Chris Found) about this and he said that while in later models Beard did fit regulators under the EL84s, the main thing was to get a good matching set of valves. He also said that he'd seen the same set of valves last ten years without problems. Can you expand on where the difficulty is - I'm interested in your experience? Andy


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