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  2. Control knob - Wikipedia

    en.wikipedia.org/wiki/Control_knob

    Two control knobs for a heating/cooling system. The left knob controls the temperature while the right controls the fan speed. A control knob is a rotary device used to provide manual input adjustments to a mechanical/electrical system when grasped and turned by a human operator, so that differing extent of knob rotation corresponds to different desired input.

  3. Organ console - Wikipedia

    en.wikipedia.org/wiki/Organ_console

    On a two-manual (Great and Swell) organ, this will be the Swell division (from where the name comes); on larger organs often part, or all of, the Choir and Solo divisions will be enclosed as well. Enclosure is the term for the device that allows volume control (crescendo and diminuendo) for a manual without the addition or subtraction of stops. [2]

  4. DJ controller - Wikipedia

    en.wikipedia.org/wiki/DJ_Controller

    DJ Controller Pioneer DDJ-RX (launched 2015) with the mixing software Rekordbox (by Mixvibes), which comes packaged with many Pioneer products, running on a computer. DJ controllers are devices used to help DJs mix music with DJ software using knobs, encoders, jog wheels, faders, backlit buttons, touch strips, and other components. [1]

  5. Potentiometer - Wikipedia

    en.wikipedia.org/wiki/Potentiometer

    The 'log pot', that is, a potentiometer has a resistance, taper, or, "curve" (or law) of a logarithmic (log) form, is used as the volume control in audio power amplifiers, where it is also called an "audio taper pot", because the amplitude response of the human ear is approximately logarithmic. It ensures that on a volume control marked 0 to 10 ...

  6. Volume control - Wikipedia

    en.wikipedia.org/wiki/Volume_control

    Volume control can refer to: Volume controlled continuous mandatory ventilation; Potentiometer, a feature on audio equipment for adjusting the sound level

  7. Pressure regulator - Wikipedia

    en.wikipedia.org/wiki/Pressure_regulator

    The gas emerges from the second stage at a pressure (working pressure) set by user by adjusting the pressure control knob at the diaphragm loading spring. Two stage regulators may have two safety valves, so that if there is any excess pressure between stages due to a leak at the first stage valve seat the rising pressure will not overload the ...

  8. LA-2A Leveling Amplifier - Wikipedia

    en.wikipedia.org/wiki/LA-2A_Leveling_Amplifier

    The LA-2A has simple controls: a Peak-Reduction knob controls the gain of the side-chain circuit, and therefore, the gain reduction; a Gain Control for make-up gain; and a Limit/Compress switch which alters the compression ratio. The VU meter may also be switched to show the gain reduction or output level.

  9. Griffin PowerMate - Wikipedia

    en.wikipedia.org/wiki/Griffin_PowerMate

    The Griffin PowerMate was officially supported on Mac OS X, Windows XP and Vista.Griffin's software for Windows works under Windows 7 and 8 but crashes occasionally; for macOS, there is no official support past 10.12 ("Sierra", released in 2016), though their USB version and configuration software (PowerMate Manager) continues to work on later versions.