[D7920ZAU], Letter from Thomas Alva Edison to Tracy Robinson Edson, July 7th, 1879
https://edisondigital.rutgers.edu/document/D7920ZAU
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Metadata
- Title
- [D7920ZAU], Letter from Thomas Alva Edison to Tracy Robinson Edson, July 7th, 1879
- Editor's Notes
- Plans for light exhibit: generator and 30 lamps, then second generator and 30 more lamps. Extremely pleased with dynamo--96% efficiency, low loss in wires. Have 80 feet of coated pipe and almost ready to run wires. Sent 1500 circulars West about platinum & getting "overwhelming" replies. Regulator good. Getting pure oxide of zirconium and will soon have enough for experiments on burner. "Everything looks bright" but will continue trying to get more than 6 burners per HP. Spending about $400/week with enough money on hand for several weeks.
- Author
- Edison, Thomas Alva
- Recipient
- Edson, Tracy Robinson
- Mentioned
- Novelty Rubber Co
- Scientific American
- Phelps Dodge & Co
- Siemens, Werner von
- Upton, Francis Robbins
- Date
- 1879-07-07
- Type
- Letter
- Subject
- Expositions, demonstrations, lectures
- Metals and minerals
- Electric light and power
- Incandescent lamp
- Dynamos and generators
- Folder ID
- D7920-F
- Microfilm ID
- 50:264
- Document ID
- D7920ZAU
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- License
- CC0 1.0 Universal
- Has Version
- Archive.org Viewer, Microfilm Series Reel 50