[D7838ZAB], Letter from Charles Henry Tucky Collis to Thomas Alva Edison, March 14th, 1878

https://edisondigital.rutgers.edu/document/D7838ZAB

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Title

[D7838ZAB], Letter from Charles Henry Tucky Collis to Thomas Alva Edison, March 14th, 1878

Editor's Notes

Occurs to him that if TAE made receiver in shape of a humming top and introduce th wire through the pin on which it revolves that by spinning it by an electric motor you can increase or decrease the volume of sound at pleasure according to the speed at which it spins

Date

1878-03-14

Type

Subject

Folder/Volume ID

D7838-F

Microfilm ID

19:650

Document ID

D7838ZAB

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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