. Electrical world. FIG. 19.—KELLOGG TR.\XSMITTER DISSECTED. carbon is formed in the diaphragm by pressing a cup-shaped de- the entire cup containing the front electrode and carbon vibrates pression in the center. with every motion of the diaphragm. So the first essential difference This construction is shown clearly in Figs. 19 and 20. The tront between the White transmitter and that of the Kellogg Company is electrode, d^. Fig. 17, is a thin, flat piece of carbon highly polished that in the White instrument the carbon rcccptriclf i-; ti\cd and in. FIG. lb.—KELLOGG TR.\NSMITTER,C.\SE OPENED.

---

Size: 1613px × 1549px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883