[D8043ZAU], Letter from Charles Cuttriss to Thomas Alva Edison, October 11th, 1880
https://edisondigital.rutgers.edu/document/D8043ZAU
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Metadata
- Title
- [D8043ZAU], Letter from Charles Cuttriss to Thomas Alva Edison, October 11th, 1880
- Editor's Notes
- Cuttriss reports limited results & problems with chalk cylinders TAE gave him in June for cable telegraphy experiments [fr. 662 is ecnlosed drawing] < "When you get the devices just so it will work strongly with 3 or 4 volts through several mega ohms ---- --- -- but its very difficult to get it just right= try a condenser in circuit of about 1/10 microfarad capacity- Hve you tried an induction coil, putting chalks in secondary= I pack & ship you a telephone for trial working Morse signals & listening reading by sound try that under various conditions. a platina point in centre of disphragm ought to open & close circuit if signals are strong When --- --- -- I haved --- make a relay I have found with certain adjustments and conditions that the lever moved slugish seeming to require time like electrification & at other times under different adjustments & conditions it would -------- open & close the circuit with enormous rapidity & I have made it a self vibrator & it actually gave vibrations so rapid -- that it would whistle so shrill as to nearly pierce your ears Its just a question of experiment I had it working one time ---- when a Thomsons' Cable Gal only went 10 degs on the scale when in same circuit yet the sounder closed & opened every time=" >
- Author
- Cuttriss, Charles
- Recipient
- Edison, Thomas Alva
- Date
- 1880-10-11
- Type
- Letter
- Subject
- Telephone
- Folder ID
- D8043-F
- Microfilm ID
- 55:658
- Document ID
- D8043ZAU
- 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 55
- Item sets
- [D8043-F] (D-80-43) Telephone -- General