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Percival Davis Lowell

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1893

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An electron tube amplifier using 60-cycle alternating current to supply power for the filaments and plates

by Percival Davis Lowell First published in 1922 — 1 edition

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Radio-frequency amplifiers

by Percival Davis Lowell First published in 1922 — 1 edition

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We need a photo of Percival Davis Lowell

Born

1893

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OLID: OL15632001A

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