| amplification |
increase in electric current, voltage, power, or the like. [1/4 definitions] |
| amplifier |
an electronic device used to increase current, voltage, power, or the like. [1/2 definitions] |
| amplify |
in electrical terminology, to increase the current, amplitude, voltage, or power of. [1/4 definitions] |
| bias |
a voltage applied to an electronic device, such as a transistor or a vacuum tube, to establish a reference level of operation. [2/8 definitions] |
| corona |
a glowing electrical discharge at the surface of a high voltage conductor or between two electrodes. [1/5 definitions] |
| high-tension |
possessing or transmitting electricity of high voltage. |
| induction coil |
a transformer for converting an interrupted low-voltage direct current to an intermittent high-voltage alternating current, as in some automotive ignitions. |
| low-tension |
of, carrying, or operating under relatively low voltage. |
| output |
voltage or current produced by a electrical or electronic system. [1/4 definitions] |
| pentode |
a vacuum tube containing five electrodes that is used as a voltage amplifier. |
| photovoltaic |
pertaining to, producing, or utilizing voltage that has been generated using radiant energy. |
| potentiometer |
an instrument that measures or controls electric potentials or electromotive forces by reference to a known or standard voltage. |
| power pack |
a portable device that converts the incoming power-line or battery-generated voltage to the voltages required by the various components of an electronic system, such as a radio or television amplifier. |
| relay |
an automatic, usu. electromagnetic, device that activates switches or other devices in the same or another electric circuit when the current or voltage in its own circuit is altered. [1/5 definitions] |
| step-down |
designating a transformer that reduces voltage, or a gear that reduces speed. [1/2 definitions] |
| step-up |
causing a discrete increase of electric voltage. [1/3 definitions] |
| synchrocyclotron |
a cyclotron in which frequency of voltage is regulated to accommodate the increases in mass of the particles as they reach high speeds. |
| transform |
to increase or decrease (voltage and current) by transferring electrical energy from one set of circuits to another. [1/5 definitions] |
| transformer |
a device that transfers electric current from one circuit or set of circuits to another, by means of electromagnetic induction and usu. for the purpose of changing voltage. [1/2 definitions] |
| transient |
a brief surge of electric current or voltage, which may occur before regular flow is established. [1/4 definitions] |
| varistor |
a semiconductor resistor, the resistance of which varies according to the voltage applied. |