RMA tube designation — In the years 1942 1944, the Radio Manufacturers Association used a descriptive nomenclature system for industrial, transmitting, and special purpose vacuum tubes. The numbering scheme was distinct from both the numbering schemes used for standard … Wikipedia
MOSFET — Two power MOSFETs in the surface mount package D2PAK. Operating as switches, each of these components can sustain a blocking voltage of 120 volts in the OFF state, and can conduct a continuous current of 30 amperes in the ON state, dissipating up … Wikipedia
Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… … Wikipedia
Avalanche transistor — An Avalanche Transistor is a bipolar junction transistor designed for operation in the region of its collector current/collector to emitter voltage characteristics beyond the collector to emitter breakdown voltage, called avalanche breakdown… … Wikipedia
Diffusion transistor — A diffusion transistor is any transistor formed by diffusing dopants into a semiconductor substrate. Diffusion transistors include some types of both bipolar junction transistors and field effect transistors. The diffusion process was developed… … Wikipedia
Valve amplifier — A valve amplifier or tube amplifier is a type of electronic amplifier that make use of vacuum tubes instead of solid state semiconductor devices (such as transistors). As any other electronic amplifier they serve to increase the power and/or… … Wikipedia
ÉLECTRONIQUE (INDUSTRIE) — L’utilisation du mot électronique dans sa présente acception est relativement récente: jusqu’aux années cinquante, ce vocable se rapportait le plus souvent à la seule discipline qui traitait du mouvement des électrons dans le vide, et ce qu’on… … Encyclopédie Universelle
Изобретение транзистора — Основная статья: Транзистор Макет точечного транзистора Бардина и Браттейна. Треугольник в центре прозрачная призма, по рёбрам которой приклеены полоски фольги выводы коллектора и эми … Википедия
Valve RF amplifier — A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical , typically (but not exclusively) radio frequency signals.Low to medium power valve amplifiers for frequencies below… … Wikipedia
Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr … Wikipedia
Bipolar junction transistor — BJT redirects here. For the Japanese language proficiency test, see Business Japanese Proficiency Test. PNP … Wikipedia