Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 64
the Ilunnings type oftransmitter than \vith other sorts, andit has the further advantage of allow-ing a greater variation of resistance. The transmitter which is usedalmost entirely at the present time isknown as the solid back, being amodification of the Ilunnings type justdescribed. The case,… … Fi?. 38. 54 ELEMENTS OF ELECTKICITY. 47 attached to tlie l»ack of the cover. The electrodes are enck)sedin a metal cliaiiil»er which is lined with insulating material.-This electrode chamber is secured by means of a set screw to ametal bridge whith is attached to the back of the cover by meansof…
Electrical engineering
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