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What do you think are the best current production vacuum tubes?

Try the Sylvania or Raytheon "tall" oval BP 12BH7A.

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I have always had great results with the oval-plate 12BH7s. Despite being a bit weird looking compared to the usual suspects, their electrical characteristics and longevity are really good. And I've never had a microphonic one either.

While I have found some American-made examples, most of the ones I find are Canadian. All styles too; black plates, gray plates, shiny plates, matt plates. They's all good:)

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