A study of wireless telegraphy and wireless telephony (1915)
Eleazarian, Aram Movses · leaf 62
as carborundum,galena, silicon, molybdenite, etc. The contact of a piece of carbon with bright steel, whenused with a telephone receiver is responsive to the inductiveeffect produced by the make and break of the primary current ofan inductive coil. This is known as the microphonic detector.Hughes… … Fig. 23 n Hughes Microphonicdree/- Carbon Defector. modifications have bet-n made to the microphonic detector justdescribed, Fig. 24 showing a granule of carbon between metallic-plugs in a tube. The microrhone de-tector is more sensitive than thefilings coherer, but it is more trouble-some . Fig.…
Telephone systems · Radio · Telegraph, Wireless · Theses
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