[D7937ZAH], Letter from Bergmann & Co, Sigmund Bergmann to Thomas Alva Edison, May 5th, 1879
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Title
[D7937ZAH], Letter from Bergmann & Co, Sigmund Bergmann to Thomas Alva Edison, May 5th, 1879
Editor's Notes
What size button in the tramsmitters now making for you? Use bell or sounder? If bell, what resistance? Marg: "1/4 inch. Want regular telephone with Bell same as you make for G&S only transmitter must have 1/4 button." Reverse marg: "what wld you sell me 60 Induction Coil my size 60 Bells 60 Transmitters 60 Switch 60 Keys-put it low down."
Author
Recipient
Date
1879-05-05
Type
Folder/Volume ID
D7937-F
Microfilm ID
52:43
Document ID
D7937ZAH
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University