1 "Ficheiro:Experiments_with_Alternate_Currents_of_High_Potential_and_High_Frequency_-_Fig_20.png".

Ficheiro:Experiments with Alternate Currents of High Potential and High Frequency - Fig 20.png

Fig. 20.—Bulb for Experiments with Conducting Tube. described at URL: https://en.wikisource.org/wiki/Page:Experiments_with_alternate_currents_of_high...

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