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direct grid bias

См. также в других словарях:

  • grid bias — n. a steady, direct current voltage applied to the control grid of an electron tube to make it negative with respect to the cathode …   English World dictionary

  • Bias (electrical engineering) — In electrical engineering, the term bias has the following meanings: # A systematic deviation of a value from a reference value. # The amount by which the average of a set of values departs from a reference value. # Electrical, mechanical,… …   Wikipedia

  • DC bias — When describing a periodic function in the frequency domain, the DC bias, DC component, DC offset, or DC coefficient is the mean value of the waveform (possibly scaled according to the norm of the corresponding basis function of the frequency… …   Wikipedia

  • Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

  • Biasing — This article is about biasing in electronics. For other uses, see Biasing (disambiguation). Biasing in electronics is the method of establishing predetermined voltages and/or currents at various points of an electronic circuit to set an… …   Wikipedia

  • Radio 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.… …   Wikipedia

  • Circlotron — 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… …   Wikipedia

  • Carbon microphone — The carbon microphone, also known as a carbon button microphone (or sometimes just a button microphone) or a carbon transmitter, is a sound to electrical signal transducer consisting of two metal plates separated by granules of carbon. One plate… …   Wikipedia

  • Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …   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

  • electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… …   Universalium

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