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Field and Laboratory

Publication Date

4-1-1935

Abstract

The demonstration apparatus shown diagrammatically in the accompanying drawing was assembled as part of a physics exhibit for Engineer's Day. Essentially it is a photo-electric cell relay device using a one stage vacuum tube amplifier.

Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

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