Definition, Betydelse & Anagram | Engelska ordet TRIODE

Definition av TRIODE

1. (elektronik) triod

Exempel på hur man kan använda TRIODE i en mening

• A triode is an electronic amplifying vacuum tube (or thermionic valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode).
• The tetrode was developed in the 1920s by adding an additional grid to the first amplifying vacuum tube, the triode, to correct limitations of the triode.
• For this he developed the Hartley oscillator and also a neutralizing circuit to eliminate triode singing resulting from internal coupling.
• It used 1,700 vacuum tubes (triode types: 6J6, 5670, 5687, a few diodes: type 6AL5, 150 pentodes to drive the memory CRTs, and 41 CRTs (type: 5CP1A): 40 used as Williams tubes for memory plus one more to monitor the state of a memory tube).
• It employed several triode vacuum tubes, and could register coincident pulses from any number of counters with a tenfold improvement in time resolution over the mechanical method of Bothe.
• In 1906 Lee De Forest added a third electrode and invented the first electronic amplifying device, the triode, which he named the Audion.
• A TRIAC (triode for alternating current; also bidirectional triode thyristor or bilateral triode thyristor) is a three-terminal electronic component that conducts current in either direction when triggered.
• The second letter was used in a similar way to the valves naming convention: "A" for signal diode, "C" for low-power bipolar transistor or triode, "D" for high-power transistor (or triode), and "Y" for rectifier, but other letter designations did not follow the vacuum tube mode so closely.
• A problem with the TRF receiver built with triode vacuum tubes is the triode's interelectrode capacitance.
• The control grid is an electrode used in amplifying thermionic valves (vacuum tubes) such as the triode, tetrode and pentode, used to control the flow of electrons from the cathode to the anode (plate) electrode.
• The 6AV6 is a miniature repackaging (with just a single cathode) of the triode and twin diodes from the octal 6SQ7 (a double-diode triode used in AM radios), which itself is very similar to the older type 75 triode-diode dating from 1930.
• British school of thought led by Walter Cocking of Wireless World leaned to push-pull, class A, RC-coupled triode output stages.
• In this book, Deaver gives credit to Lee de Forest, the inventor of the Audion (also known as the triode tube), who is thus considered to have opened the world to electronic development.
• The beam tetrode produces greater output power than a triode or pentode with the same anode supply voltage.
• The same result was achieved historically by the pentagrid converter or a triode and hexode in a single tube, but can be implemented in transistor radios economically by a single transistor functioning as a self-oscillating mixer.
• That also reduces the potential voltage amplification obtainable from a triode compared with a pentode of the same transconductance, and usually means a more efficient output stage can be made using pentodes, with a lower power drive signal.
• They proposed a cascade of two triodes (the first one with a common cathode setup, the second one with a common grid) as a replacement for a pentode, and so the name may be assumed to be an abbreviation of "casc(aded triode amplifier having characteristics similar to, but less noisy than, a single pent)ode".
• A major defect of the TRF receiver was that, due to the high interelectrode capacitance of early triode vacuum tubes, feedback within the RF amplifier stages gave them a tendency to oscillate, creating unwanted radio frequency alternating currents.
• A single-ended triode (SET) is a vacuum tube electronic amplifier that uses a single triode to produce an output, in contrast to a push-pull amplifier which uses a pair of devices with antiphase inputs to generate an output with the wanted signals added and the distortion components subtracted.
• For example, the 12BH7 (double triode with separate cathodes) counts the center tapped heater as one useful element, whereas the 12BY7 (pentode) counts the center tapped heater as two useful elements.

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