high-impedance state
51Earthing system — In sulvent systems, an earthing system defines the electrical potential of the conductors relative to that of the Earth s conductive surface. The choice of earthing system has implications for the safety and electromagnetic compatibility of the… …
52Logic 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… …
53Circlotron — valve amplifier is a type of power amplifier utilizing symmetrical cathode coupled bridge layout of the output stage. Original circlotrons of 1950s used output transformers to couple relatively high output impedance of vacuum tubes to low… …
54Electric guitar — Fender Stratocaster String instrument Classification String instrument (plucked, either by fingerpicking, or with a pick.) …
55MIL-STD-883 — The MIL STD 883 standard establishes uniform methods, controls, and procedures for testing microelectronic devices suitable for use within Military and Aerospace electronic systems including basic environmental tests to determine resistance to… …
56The David Berning Company — Established in 1974, The David Berning Company manufactures tube audio amplifiers utilizing the patented[1] ZOTL Impedance Conversion Technology that properly matches high impedance vacuum tubes to the low impedance realm of speakers without the… …
57Dynamic logic (digital electronics) — For the subject in theoretical computer science, see dynamic logic (modal logic). In integrated circuit design, dynamic logic (or sometimes clocked logic) is a design methodology in combinatorial logic circuits, particularly those implemented in… …
58Whale — Whales are marine mammals which are neither dolphins (i.e. members of the families Delphinidae or Platanistoidae) nor porpoises. Orcas (Killer Whales) and Pilot whales have whale in their name, though they are dolphins for the purpose of… …
59Potentiostat — A potentiostat is a control and measuring device that, in an electrolytic cell, keeps the potential of the working electrode at a constant level with respect to the reference electrode. It consists of an electric circuit which controls the… …
60Citizens' band radio — Typical 1980s CB base station, used with outdoor antenna. This radio may also be used in an automobile, since it is powered by 13.8V DC. Shown with Astatic Power D 104 desk mic …
