filter transformer
21AC/DC (electricity) — Electronic equipment designed to run off either alternating current (ac) or direct current (dc) power is described as ac/dc or AC/DC equipment. This usage has become obsolete with the vacuum tube. Some equipment is inherently able to use either… …
22Electronic component — Various components An electronic component is a basic electronic element and may be available in a discrete form having two or more electrical terminals (or leads). These are intended to be connected together, usually by soldering to a printed… …
23Radio transmitter design — In plate modulation systems the voltage delivered to the stage is changed. As the power output available is a function of the supply voltage, the output power is modulated. This can be done using a transformer to alter the anode (plate) voltage.… …
24List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …
25Nominal impedance — in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of: The nominal value of …
26Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
27Christmas lighting technology — has been subject to considerable development and variation since the replacement of candles by electric lights. Contents 1 Incandescent Christmas Lights 2 LEDs 3 Fiber optic lights 4 B …
28Liste de pare-feu — Cette page dresse une liste non exhaustive de différentes implémentations connues de pare feu. Sommaire 1 Versions libres 2 Distribution Linux 3 Boîtiers pare feu 4 Pare feu personnels …
29Liste de pare-feux — Liste de pare feu Cette page dresse une liste non exhaustive de différentes implémentations connues de pare feu. Sommaire 1 Versions libres 2 Distribution Linux 3 Boîtiers pare feu 4 Pare feu per …
30Three-phase electric power — This article deals with where, how and why three phase is used. For information on the basic mathematics and principles of three phase, see three phase. Three phase electric power is a common method of alternating current electric power… …
