carbon granules

См. также в других словарях:

• Carbon microphone — The carbon microphone, also known as a carbon button microphone (or sometimes just a button microphone) or a carbon transmitter, is a sound to electrical signal transducer consisting of two metal plates separated by granules of carbon. One plate… …   Wikipedia

• carbon microphone — noun : a microphone whose operation depends on the alteration of the electrical resistance of carbon contacts * * * carbon microphone noun A microphone in which variations in sound pressure produced in a diaphragm are detected in a current… …   Useful english dictionary

• carbon resistor — noun a simple electrical resistor containing carbon granules in a binder …   Wiktionary

• carbon microphone — noun A microphone containing carbon granules, whose electrical resistance varies with pressure …   Wiktionary

• carbon microphone — /kabən ˈmaɪkrəfoʊn/ (say kahbuhn muykruhfohn) noun a type of microphone in which variations in air pressure caused by sound are transmitted to granules of carbon, the electrical resistance of which varies with the pressure; used in telephone… …  

• Activated carbon — Activated carbon, also called activated charcoal, activated coal or carbo activatus, is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions …   Wikipedia

• telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …   Universalium

• Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …   Wikipedia

• Lark (cigarette) — Infobox name = Infobox/doc above = Lark Cigarettes caption = Logo from a pack of regular Lark Cigarettesheaderstyle = background:#ccf; labelstyle = background:#zzz; datasytle = background:#ddf; bodystyle = background:#abcheader1 = Product… …   Wikipedia

• Timeline of the telephone — Below is a Timeline of the telephone that covers important dates in the history of the telephone.1844 to 1875*1844 Innocenzo Manzetti first mooted the idea of a “speaking telegraph” (telephone). *1849 Antonio Meucci demonstrates a communicating… …   Wikipedia

• Telephone — The telephone (from the el. τῆλε, tēle , far and φωνή, phōnē , voice ) is a telecommunications device that is used to transmit and receive sound (most commonly speech), usually two people conversing but occasionally three or more. It is one of… …   Wikipedia