The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 150
e transmitter circuit, in passing from one electrode WIRE TELEPHONY. 147 to tlie other, passes through the entire mass of carbon grannies.The two wires leading to the transmitter are connected to thebinding posts G and H. The metal face K of the transmitteris made heavy to prevent excessive… … Fig. 93a.—Microphone transmitter. then transmitted, and it is therefore difficult to understand thespeech. The current through the usual type of microphonetransmitter is about 0.2 ampere, and the power consumed in thetransmitter is about 2 watts. The microphone transmitters used in radiotelephony…
Telegraph, Wireless · Radio
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