[D8968AAU], Letter from Arthur Edwin Kennelly to Alfred Ord Tate, December 11th, 1889
https://edisondigital.rutgers.edu/document/D8968AAU
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Metadata
- Title
- [D8968AAU], Letter from Arthur Edwin Kennelly to Alfred Ord Tate, December 11th, 1889
- Editor's Notes
- Orange, NJ 11th Dec. 89 A.O. Tate Esq Dear Sir The accompanying phonoplex coil appears to be satisfactory in every respect except provision for insulation, which is an important one as the momentary e.m.f. obtained from the coil is about 200 volts. I would suggest that the wires leading beneath the base to the terminals be in all cases insulated by thin rubber tubing with the bottom of the terminals covered by a thin layer of shellac or paraffine wax also that a thin lager of shellac be spread in the form of varnish over the outer layer before coating with braid to prevent the possible absorption of moisture Yours faithfully A.E. Kennelly
- Author
- Kennelly, Arthur Edwin
- Recipient
- Tate, Alfred Ord
- Date
- 1889-12-11
- Type
- Letter
- Subject
- Phonoplex and railroad telegraphy
- Cables, feeders, and other exterior elements
- Chemicals, chemical products, and chemical processes
- Folder ID
- D8968-F
- Microfilm ID
- 128:375
- Document ID
- D8968AAU
- 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 128