internal input impedance
71Opto-isolator — This article is about the electronic component. For the optical component, see optical isolator. Schematic diagram of an opto isolator showing source of light (LED) on the left, dielectric barrier in the center, and sensor (phototransistor) on… …
72Sound Blaster X-Fi — XtremeGamer Fatal1ty Pro Sound Blaster X Fi is a lineup of sound cards in Creative Labs Sound Blaster series. Contents 1 …
73Parallax Propeller — chip The Parallax P8X32A Propeller chip, introduced in 2006, is a multi core architecture parallel microcontroller with eight 32 bit RISC CPU cores.[1] …
74Underwater acoustics — The field of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing, acoustical oceanography, bioacoustics, and physical acoustics.HistoryUnderwater sound… …
75Electric guitar — Fender Stratocaster String instrument Classification String instrument (plucked, either by fingerpicking, or with a pick.) …
76SWR meter — The SWR meter or VSWR (voltage standing wave ratio) meter measures the standing wave ratio in a transmission line. This is an item of radio equipment used to check the quality of the match between the antenna and the transmission line.The VSWR… …
77Composite image filter — Linear analog electronic filters Network synthesis filters Butterworth filter Chebyshev filter Elliptic (Cauer) filter Bessel filter Gaussian filter Optimum L (Legendre) filter Linkwitz Riley filter …
78Hardware random number generator — This SSL Accelerator computer card uses a hardware random number generator to generate cryptographic keys to encrypt data sent over computer networks. In computing, a hardware random number generator is an apparatus that generates random numbers… …
79Logic level — In digital circuits, a logic level is one of a finite number of states that a signal can have. Logic levels are usually represented by the voltage difference between the signal and ground (or some other common reference point), although other… …
80RLC circuit — A series RLC circuit: a resistor, inductor, and a capacitor An RLC circuit (or LCR circuit) is an electrical circuit consisting of a resistor, an inductor, and a capacitor, connected in series or in parallel. The RLC part of the name is due to… …
