Letter from Arnold O. Beckman to Lee de Forest
- 1953-Jan-07

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Small JPG800 x 1036px — 163 KBMedium JPG1200 x 1554px — 362 KBFull-sized JPG2769 x 3585px — 1.7 MBOriginal fileTIFF — 2769 x 3585px — 28.5 MBIn this letter, Beckman declines to develop de Forest's light amplifier.
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Scientific Biography
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Beckman, Arnold O. “Letter from Arnold O. Beckman to Lee De Forest,” January 7, 1953. Beckman Historical Collection, Box 1, Folder 18. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/z890rv07b.
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