[D8902AAU], Letter from Bergmann & Co to Arthur Edwin Kennelly, November 30th, 1889
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Title
[D8902AAU], Letter from Bergmann & Co to Arthur Edwin Kennelly, November 30th, 1889
Editor's Notes
We send you by express today the Ampere-meter, which you calibrated for Brown some three months since. # It was returned to us for some slight alteration and repairs, the execution of which has in all probability rendered the original scale inaccurate. # Therefore, we would request that you have it recalibrated for the same ampire(?) capacity, upon an alternating circuit, having not less than 290 alternations per second-- which, we believe, was the rate of alternation of the current used to obtain the original scale. # Kindly return this instrument to us as soon as convenient in order that we may return same to the State Authorities without delay.
Author
Recipient
Mentioned
Date
1889-11-30
Type
Folder/Volume ID
D8902-F
Microfilm ID
125:57
Document ID
D8902AAU
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University