[D7919ZEF], Letter from Jacob C Rogers to Thomas Alva Edison, December 27th, 1879
https://edisondigital.rutgers.edu/document/D7919ZEF
PDF: Archive.org
CSV: Metadata
Metadata
- Title
- [D7919ZEF], Letter from Jacob C Rogers to Thomas Alva Edison, December 27th, 1879
- Editor's Notes
- Light Co. stockholder and friend of Fabbri was in party to see TAE recently; has more questions. Is the carbon imperishible? Marg: "No change after 208 hours burning. Cannot conceive how it can be improved." Will expansion/contraction destroy globe? Marg: "Expansion & contraction is slow. [illeg]. When carbon breaks, can fresh lamp be substituted? Extensive marg: "....so far there are 21 lamps that have burned 152 hours without change and 3 lamps 208 hours without change...." Replacement lamps to be inserted in socket: "...we have a new socket so a child can replace a lamp."
- Author
- Rogers, Jacob C
- Recipient
- Edison, Thomas Alva
- Mentioned
- Fabbri, Egisto Paolo
- Date
- 1879-12-27
- Type
- Letter
- Folder ID
- D7919-F
- Microfilm ID
- 50:190
- Document ID
- D7919ZEF
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 50