Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 177
)c maintained at least on one terminal, a deposit of some suit-able metal often being employed, thus permitting of a large area ofcontact. The adjustable contact is preferably pointed and securely held. … Fig. 45. Silicon Detector 154
Electrical engineering
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