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Technical drawing of a spark gap

NV Netherlands Radio Industry1919

The Netherlands Institute for Sound and Vision

The Netherlands Institute for Sound and Vision
Hilversum, Netherlands

For use in the production of spark transmitters in the workshop of the NRI

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  • Title: Technical drawing of a spark gap
  • Creator: NV Netherlands Radio Industry
  • Date Created: 1919
  • Location: The Hague, The Netherlands

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