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Continue to Chat5.2 Power supply for the vacuum tube filaments https://www.vtadiy.com/book/chapter-5-power-supply-unit/5-2-power-supply-for-the-vacuum-tube-filaments/
5.2 Power supply for the vacuum tube filaments https://www.vtadiy.com/book/chapter-5-power-supply-unit/5-2-power-supply-for-the-vacuum-tube-filaments/