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  2. Magnetic cartridge - Wikipedia

    en.wikipedia.org/wiki/Magnetic_cartridge

    An Audio Technica AT-F3 moving coil phono cartridge. A magnetic cartridge, more commonly called a phonograph cartridge or phono cartridge or (colloquially) a pickup, is an electromechanical transducer that is used to play phonograph records on a turntable.

  3. Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone

    The microphone commonly consists of a magnetic (moving coil) transducer, contact plate and contact pin. The contact plate is placed directly on the vibrating part of a musical instrument or other surface, and the contact pin transfers vibrations to the coil.

  4. Velocity receiver - Wikipedia

    en.wikipedia.org/wiki/Velocity_receiver

    There are two primary types of velocity receivers: moving coil and piezoelectric. Each type has unique characteristics and uses. Moving Coil Velocity Receivers: This type of sensor contains a coil supported by springs within a stationary magnetic field. When movement occurs, the coil moves within the magnetic field, generating a voltage that is ...

  5. Loudspeaker - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker

    The original loudspeaker design was the moving iron. Unlike the newer dynamic (moving coil) design, a moving-iron speaker uses a stationary coil to vibrate a magnetized piece of metal (called the iron, reed, or armature). The metal is either attached to the diaphragm or is the diaphragm itself. This design originally appeared in the early ...

  6. Electrical characteristics of dynamic loudspeakers - Wikipedia

    en.wikipedia.org/wiki/Electrical_characteristics...

    The voice coil in moving coil drivers is suspended in a magnetic field provided by the loudspeaker magnet structure. As electric current flows through the voice coil (from an electronic amplifier), the magnetic field created by the coil reacts against the magnet's fixed field and moves the voice coil (and so the cone). Alternating current will ...

  7. Electrodynamic speaker driver - Wikipedia

    en.wikipedia.org/wiki/Electrodynamic_speaker_driver

    The coil and the driver's magnetic system interact in a manner similar to a solenoid, generating a mechanical force that moves the coil (and thus, the attached cone). Application of alternating current moves the cone back and forth, accelerating and reproducing sound under the control of the applied electrical signal coming from the amplifier.

  8. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    A typical moving-coil headphone transducer The moving coil driver , more commonly referred to as a "dynamic" driver is the most common type used in headphones. It consists of a stationary magnet element affixed to the frame of the headphone, which sets up a static magnetic field.

  9. Air Motion Transformer - Wikipedia

    en.wikipedia.org/wiki/Air_Motion_Transformer

    The Air Motion Transformer (AMT) is a type of electroacoustic transducer.Invented by Oskar Heil (1908–1994), it operates on a different transduction principle from other loudspeaker designs, such as moving coil, planar magnetic or electrostatically-driven loudspeakers, and should not be confused with planar or true ribbon loudspeakers.

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