[X042DB], Letter from Thomas Alva Edison to Werner von Siemens, November 2nd, 1889

Item

Abstract

[SELECTABLE] [TAE ALS] Friend Siemens-- Have been thinking over the system proposed for Frankfort, and I cannot clearly see what becomes of the lamps should a short circuit occur on one of the split circuits. I think it would be safer to double wind your regular dynamo and use it as a continuous current transformer, opening three or four sub stations each in charge of a boy. There is absolutely no spark on these Transformers the action as a motor being the opposite as a dynamo. You can have several transformers at each station taking them off as the load diminishes thus obtaing best economy. 1200 volts could be used on trunk main leading to sub stations all being in multiple arc. ## I have not received details of copper process. ## Your contract will probably go through if we can remove the objections nof Drexel M Organ & Co. ## I cabled Siemens Bros today for prices 140 miles cable for conveying 20,000 horsepower to Buffalo from Niagara Falls. I propose laying gutta percha cable all the way 20 miles in the river and canal. Drexel Morgan & other bankers are interested and I think they will do it. ## Give my respects to your kind wife.

Date

1889-11-02

Decade

1880-1889

Type

Identifier

X042DB

Folder Set

X042D

Title

[X042DB], Letter from Thomas Alva Edison to Werner von Siemens, November 2nd, 1889

Microfilm ID

Publisher

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