Grounding structure and grounding method of vacuum tube audio amplifier
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United States of America Patent
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Nov 20, 2018
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app pub date -
Aug 31, 2017
filing date -
Aug 31, 2017
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Abstract
The invention provides a grounding structure and a grounding method for a vacuum tube audio amplifier, the grounding structure and the grounding method including: with respect to a power source, utilizing a power circuit without a choke, an anti-coupling circuit, and a filament voltage regulator circuit; and with respect to the grounding method, utilizing an negative output terminal of an audio output transforming circuit or a negative terminal of a filter capacitor in the power circuit as a single ground terminal of the vacuum tube audio amplifier, and not arranging a grounding metal bottom plate therein, in order to achieve a compact, lightweight desktop model of a vacuum tube audio amplifier.
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