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  2. DIY audio - Wikipedia

    en.wikipedia.org/wiki/DIY_audio

    An example of DIY audio: a functioning battery-operated DAC (Digital-to-analog converter) before installation in a box case. DIY Audio, do it yourself audio.Rather than buying a piece of possibly expensive audio equipment, such as a high-end audio amplifier or speaker, the person practicing DIY Audio will make it themselves.

  3. Heathkit - Wikipedia

    en.wikipedia.org/wiki/Heathkit

    Oscilloscope OL-1 from 1954, the company's first with a relatively small 3-inch CRT which allowed for a highly competitive price of US$ 29.50 (equivalent to $335 in 2023) for the DIY kit. [ 1 ] Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath Company .

  4. Dynaco - Wikipedia

    en.wikipedia.org/wiki/Dynaco

    A smaller tube amplifier, the 17.5wpc Stereo 35, was introduced in 1963, and was followed the next year by the SCA 35, the company's first integrated (preamp + power amp) tube amplifier. In 1992, an updated version of the Stereo 70, the Stereo 70 II , was produced by Sound Valves for Panor Corporation.

  5. List of open-source hardware projects - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    Twibright RONJA – free-space optic system, DIY in a garage and maker culture, 10 Mbit/s full duplex/1.4 km; SatNOGS – software-hardware project of a global low Earth orbit satellite ground station, including for data and Internet

  6. Preamplifier - Wikipedia

    en.wikipedia.org/wiki/Preamplifier

    An example of a typical high-end stereo preamplifier. A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker. [1]

  7. Home audio - Wikipedia

    en.wikipedia.org/wiki/Home_audio

    Modern home cinema systems typically augment the audio output from a DVD player or Blu-ray player with a multi-channel power amplifier and anywhere from two speakers and a stereo power amp (for stereo sound) to a 5.1 channel amplifier and five or more surround sound speaker cabinets (with a surround sound system).

  8. Plasma speaker - Wikipedia

    en.wikipedia.org/wiki/Plasma_speaker

    The ExcelPhysics variant used a flyback transformer to step up voltage, a 555 timing chip to provide modulation and a 44 kHz carrier signal, and an audio amplifier. The kit is no longer marketed. [10] A flame speaker uses a modulated flame for the driver and

  9. 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.

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