impedance relay
71Voltage regulator — A popular three pin 12 V DC voltage regulator IC. A voltage regulator is an electrical regulator designed to automatically maintain a constant voltage level. A voltage regulator may be a simple feed forward design or may include negative feedback …
72Sensory substitution — means to transform the characteristics of one sensory modality into stimuli of another sensory modality. It is hoped that sensory substitution systems can help handicapped people by restoring their ability to perceive a certain defective sensory… …
73List of radiation topics — *absorbed dose *equivalent dose *hormesis *Louis Harold Gray (British physicist) *rad (unit) *radar *radar astronomy *radar cross section *radar detector *radar gun *radar jamming *(radar reflector) corner reflector *radar warning receiver… …
74дистанционная защита — [В.А.Семенов Англо русский словарь по релейной защите] дистанционная защита Защита с относительной селективностью, срабатывание и селективность которой зависят от измерения в месте ее установки электрических величин, по которым путем сравнения с… …
75TRS-80 Color Computer — 16k TRS 80 Color Computer 1 Developer Tandy Corporation Manufacturer Motorola Release date 1980 …
76Network topology — Diagram of different network topologies. Network topology is the layout pattern of interconnections of the various elements (links, nodes, etc.) of a computer[1][2] …
77Varistor — A 385 volt metal oxide varistor A varistor is an electronic component with a diode like nonlinear current–voltage characteristic. The name is a portmanteau of variable resistor. Varistors are often used to protect circuits against excessive… …
78Delay line memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube …
79Telephone hybrid — A telephone hybrid is a relatively simple electronic device used to connect telephone line to studio audio circuits. These are normally used in radio stations (and sometimes TV stations and broadcast networks) to connect callers into the airchain …
80Intercom — Call button redirects here. For call buttons provided to patients in a health care setting, see Nurse call button. Intercom system in the Pittock Mansion An intercom (intercommunication device), talkback or doorphone is a stand alone voice… …
