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Schematic symbol used in circuit diagrams for a triode, showing symbols for electrodes. All triodes have a hot cathode electrode heated by a filament, which releases electrons, and a flat metal plate electrode (anode) to which the electrons are attracted, with a grid consisting of a screen of wires between them to control the current.
Schematic symbol used in circuit diagrams for a vacuum tube, showing control grid. 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 control grid usually consists of a cylindrical ...
English: Schematic circuit symbol for a triode vacuum tube. (C) cathode, (G) grid, (P) plate. In this variant the filament, normally shown as a V shaped symbol at bottom, is omitted. It is common practice in many vacuum tube circuit diagrams to omit the filament circuits or locate them in another part of the diagram, to reduce clutter.
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English: Schematic symbol used in electrical circuit diagrams for a triode vacuum tube, with parts labeled. Date: 4 January 2015: Source: Own work: Author: Chetvorno ...
Common circuit diagram symbols (US ANSI symbols) An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may ...
The device is then said to be "triode-strapped" or "triode-connected". This is sometimes provided as an option in audiophile pentode amplifier circuits, to give the sought-after "sonic qualities" of a triode power amplifier. A resistor may be included in series with the screen grid to avoid exceeding the screen grid's power or voltage rating ...
Circuit diagram of a single-ended triode The overwhelmingly dominant circuit topology during this period was the single-ended triode gain stage, operating in class A, which gave very good sound (and reasonable measured distortion performance) despite extremely simple circuitry with very few components: important at a time when components were ...