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1 gen 1903 anni - De Forest invents Audion

Descrizione:

He envents the audion in an effort to amplify sound waves after thinking the solution for amplification is found in gas and electricity

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Sound Timeline

ByKaroline Herkamp

23 apr 2021

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251

Data:

1 gen 1903 anni

Adesso

~ 122 years ago

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