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On this Day in Telephone History

On This Day in Telephone History May 4TH 1875

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On This Day in Telephone History May 4TH 1875 Alexander Graham Bell Conceived of using Varying Resistance. Alexander Graham Bell conceived of using varying resistance in a wire conducting electric current to create a varying current amplitude. Bell wrote in a letter to Gardiner Greene Hubbard: “a continuous current of electricity passed through a vibrating wire should meet with varying resistance, and hence a pulsatory action should be induced in the current”

Alexander Graham Bell conceived of using varying resistance in a wire conducting electric current to create a varying current amplitude. Bell wrote in a letter to Gardiner Greene Hubbard: “a continuous current of electricity passed through a vibrating wire should meet with varying resistance, and hence a pulsatory action should be induced in the current” … Read more