[LB008050], Letter from Thomas Alva Edison to Francis Robbins Upton, March 11th, 1881
https://edisondigital.rutgers.edu/document/LB008050
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Metadata
- Title
- [LB008050], Letter from Thomas Alva Edison to Francis Robbins Upton, March 11th, 1881
- Editor's Notes
- I want for lighting up our Office here one hundred lamps with new small sockets which have no more than two volt [variation?] with high vacuum so that the vacuum will not break down. These should be here by Thursday next or Friday. Can you do this? [P.S.] Memo. Would it not be well when you are getting a curve of copper plate lamps to test their economy at the tstart and then make a test of the economy after five hours burning to see if the vacuum has been knowcked down. I suppose your plan of brining the lamps up high on hte pumps will prevent this. But it would be well to prove the fact.
- Author
- Edison, Thomas Alva
- Recipient
- Upton, Francis Robbins
- Date
- 1881-03-11
- Type
- Letter
- Folder ID
- LB008-F
- Microfilm ID
- 80:861
- Document ID
- LB008050
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 80
- License
- CC0 1.0 Universal
- Item sets
- [LB008-F] LB-008 (1881)