narrow-band amplifier
81Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …
82Headphones — For other uses, see Headphones (disambiguation). Sennheiser HD555 headphones, used in audio production environments …
83John Birch (luthier) — John Birch was an English luthier mainly known for his electric guitars. Some of his customers included Tony Iommi and Geezer Butler of Black Sabbath, Brian May of Queen, Dave Hill and Jim Lea of Slade, Gerry Shephard of The Glitter Band, and Roy …
84Long-range Wi-Fi — is used for low cost, unregulated point to point connections, as an alternative to cellular networks, microwave or satellite links. The use of the term long range wifi as depicted on this page for extreme ranges is not in any way endorsed by the… …
85Low-noise block converter — A low noise block converter (LNB, for low noise block, or sometimes LNC, for low noise converter) is the (receiving, or downlink) antenna of what is commonly called the parabolic (actually paraboloid) satellite dish commonly used for satellite TV …
86BGW Systems — Infobox Company name = BGW Systems, Inc. type = Privately held company genre = foundation = Hawthorne, California, 1971 founder = Brian Gary Wachner location city = Montebello, California location country = location = locations = area served =… …
87Comparator — For other uses, see Comparator (disambiguation). In electronics, a comparator is a device that compares two voltages or currents and switches its output to indicate which is larger. They are commonly used in devices such as Analog to digital… …
88Spectrum analyzer — A spectrum analyzer Spectrum analyzer display A spectrum analyzer measures the magnitude of an input signal versus frequency with …
89Pickup (music technology) — For phonograph pickup, see Magnetic cartridge. For other uses, see Pickup disambiguation page. Three magnetic pickups on a Peavey Raptor with the pickup configuration of a fat strat (H S S). The bridge (right) pickup is a humbucker and the neck… …
90MOSFET — 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 …
