[D7838ZAY], Letter from F W O'Brien to Thomas Alva Edison, April 9th, 1878
https://edisondigital.rutgers.edu/document/D7838ZAY
PDF: Archive.org
CSV: Metadata
Metadata
- Title
- [D7838ZAY], Letter from F W O'Brien to Thomas Alva Edison, April 9th, 1878
- Editor's Notes
- Inquires whether a telephonic repeater is practicable and could be arranged with a single diaphragm between two permanent magnets each in a separate circuit TAE marg: It would work but it would be very eak and you could do better direct
- Author
- O'Brien, F W
- Recipient
- Edison, Thomas Alva
- Date
- 1878-04-09
- Type
- Letter
- Subject
- Telephone
- Folder ID
- D7838-F
- Microfilm ID
- 19:683
- Document ID
- D7838ZAY
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 19
- Item sets
- [D7838-F] (D-78-38) Telephone -- General