[D8346ZBQ], Letter from Frank Julian Sprague to Thomas Alva Edison, November 22nd, 1883
https://edisondigital.rutgers.edu/document/D8346ZBQ
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Metadata
- Title
- [D8346ZBQ], Letter from Frank Julian Sprague to Thomas Alva Edison, November 22nd, 1883
- Editor's Notes
- diagram illustrating testing of polarity on new indicators [Edison Effect lamps]; "there has been a slight drop on the running lamp. Hypothesizes about Edison Effect current, that it's due to vaporization of platinum. TAE marg doesn't really address causation: "We have put some of the lamps with wire in center up on test at 64 candles & find they have just as good life as Regulars & platinum dont blacken so its OK. Bergmann in getting along [illeg] with the 12; abt nxt Thurs shall have some."
- Author
- Sprague, Frank Julian
- Recipient
- Edison, Thomas Alva
- Date
- 1883-11-22
- Type
- Letter
- Folder ID
- D8346-F
- Microfilm ID
- 69:595
- Document ID
- D8346ZBQ
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 69