- foil diaphragm
- диафрагма из (алюминиевой) фольги
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
Crystal earpiece — Crystal radio using piezoelectric earpiece Common piezoelectric earpiece used with portable radios A crystal earpiece, more properly called a piezoelectric earphone … Wikipedia
Electret microphone — An electret microphone is a type of condenser microphone, which eliminates the need for a power supply by using a permanently charged material.An electret is a stable dielectric material with a permanently embedded static electric charge (which,… … Wikipedia
Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 … Wikipedia
History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… … Wikipedia
Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after … Wikipedia
Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A … Wikipedia
Tweeter — A tweeter is a loudspeaker designed to produce high frequencies, typically from around 2,000 hertz to 20,000 hertz (20,000 Hz, generally considered to be the upper limit of the human hearing). A few tweeters can manage response up to an octave or … Wikipedia
Spud gun (cannon) — This article is about pipe based cannons and similar which use air pressure, or combustion of a gaseous fuel, or both, to launch large projectiles at low speed. They are in two types: * To fire whole potatoes. These launchers are built and fired… … Wikipedia
Spud gun — For the child s toy which fires small pieces of potato, see spud gun (toy). A pneumatic potato cannon A potato cannon (also known as a spud gun or spudzooka ) is a pipe based cannon which uses air pressure (pneumatic), Propellant, or… … Wikipedia
Gas compressor — A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are… … Wikipedia
Single-lens reflex camera — The single lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non SLR cameras where the view through the… … Wikipedia