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Description: Part of a high frequency resonator, comprising base with Spark-gap enclosed in glass vessel and helical copper spring, switch and terminals, French, 1890-1900 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: high frequency resonators Temporal: 1890-1900 Source: Science Museum Identifier: A182651 Go to resource More Like this...
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