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 223
Fig 8 Transmitter Associated with the Supply Circuit a transformer, the primary circuit of which contains a carbon trans-mitter and local battery. The fluctuations of intensity of the oscil-lations may be effected in a manner diagrammatically shown in 193 1? WIRELESS TELEPHONY Fig. 9, where the… … rARTM Fig. 9. Transmitter Inductively Associated with the ClosedOscillatory Circuit prevent the voice current from passing around through the sourceof supply. In Fig. 10 is shown still another method of locating the variable-resistance member, viz, by shunting the secondary of the oscillation…
Electrical engineering
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