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  2. Triode - Wikipedia

    en.wikipedia.org/wiki/Triode

    In triode datasheets, characteristics linking the anode current (I a) to anode voltage (V a) and grid voltage (V g) are usually given. From here, a circuit designer can choose the operating point of the particular triode. Then the output voltage and amplification of the triode can be evaluated graphically by drawing a load line on the graph.

  3. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...

  4. Trio (music) - Wikipedia

    en.wikipedia.org/wiki/Trio_(music)

    In music, a trio (from the Italian) is any of the following: a composition for three performers or three musical parts; in larger works, the middle section of a ternary form (so named because of the 17th-century practice of scoring the contrasting second or middle dance appearing between two statements of a principal dance for three instruments)

  5. Single-ended triode - Wikipedia

    en.wikipedia.org/wiki/Single-ended_triode

    A SET tube audio amplifier. 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.

  6. Control grid - Wikipedia

    en.wikipedia.org/wiki/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 screen or helix of fine wire surrounding the cathode, and is surrounded in turn by ...

  7. Pentode - Wikipedia

    en.wikipedia.org/wiki/Pentode

    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 ...

  8. Reflex receiver - Wikipedia

    en.wikipedia.org/wiki/Reflex_receiver

    The single triode vacuum tube amplifies the radio signal, then also amplifies the audio modulation signal extracted from it by the detector. A reflex radio receiver , occasionally called a reflectional receiver , is a radio receiver design in which the same amplifier is used to amplify the high-frequency radio signal (RF) and low-frequency ...

  9. 300B - Wikipedia

    en.wikipedia.org/wiki/300B

    In electronics, the 300B is a directly-heated power triode vacuum tube with a four-pin base, introduced in 1938 by Western Electric to amplify telephone signals. It measures 6.4 in (16 cm) high and 2.4 in (6.1 cm) wide, and the anode can dissipate 40 watts thermal.