- high-frequency buzzer
- зуммер высокого тока
English-Russian dictionary of Information technology. 2005.
English-Russian dictionary of Information technology. 2005.
Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… … Wikipedia
Cat's-whisker detector — Galena cat s whisker detector Precision cat s whisker d … Wikipedia
Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism … Wikipedia
Inverter (electrical) — An inverter is an electrical device that converts direct current (DC) to alternating current (AC)[1]; the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits. Solid… … Wikipedia
Numbers station — Fictional example of a numbers station. Numbers stations (or number stations) are shortwave radio stations of uncertain origin. In the 1950s, Time magazine reported that the numbers stations first appeared shortly after World War II and were… … Wikipedia
Brevity code — Contents 1 American/NATO codes 1.1 A 1.2 B 1.3 C … Wikipedia
Morse code — Chart of the Morse code letters and numerals Morse code is a method of transmitting textual information as a series of on off tones, lights, or clicks that can … Wikipedia
National Emergency Alarm Repeater — The N.E.A.R. Warning Device. The National Emergency Alarm Repeater (NEAR) was a civilian emergency warning device in the United States. It was a 2 3 (5 7.5cm) square box designed to plug into a standard 110 volt power outlet to receive a special… … Wikipedia
Mobile Telephone Service — The Mobile Telephone Service (MTS) is a pre cellular VHF radio system that links to the Public Switched Telephone Network (PSTN). MTS was the radiotelephone equivalent of land dial phone service. As of 2005[update], only rural and wilderness… … Wikipedia
horn — Synonyms and related words: Klaxon, Mayday, SOS, acoustical network, aerophone, air raid alarm, alarm, alarm bell, alarm clock, alarm signal, alarum, alert, all clear, alpenhorn, alphorn, althorn, alto horn, ballad horn, baritone, bass horn,… … Moby Thesaurus
Violet wand — suspects in the 1970s and 1980scite web|url=http://www.chicagoreader.com/policetorture/thirddevice/|publisher=Chicago Reader|date=2007 02 04 |title=Police Torture in Chicago: The Mysterious Third Device] .A modern violet ray typically consists of … Wikipedia