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Continue to Chat3.6.2 Cathode bias or self-bias for vacuum tubes https://www.vtadiy.com/book/chapter-3-vacuum-tubes-as-amplifiers/3-6-biasing-techniques/3-6-2-cathode-bias-or-self-bias/
3.6.2 Cathode bias or self-bias for vacuum tubes https://www.vtadiy.com/book/chapter-3-vacuum-tubes-as-amplifiers/3-6-biasing-techniques/3-6-2-cathode-bias-or-self-bias/