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  2. Voltage-controlled oscillator - Wikipedia

    en.wikipedia.org/wiki/Voltage-controlled_oscillator

    A voltage-controlled crystal oscillator (VCXO) is used for fine adjustment of the operating frequency. The frequency of a voltage-controlled crystal oscillator can be varied a few tens of parts per million (ppm) over a control voltage range of typically 0 to 3 volts, because the high Q factor of the crystals allows frequency control over only a ...

  3. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    A Battery: Eveready 742: 1.5 V: Metal tabs H: 101.6 L: 63.5 W: 63.5 Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threa­ded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies.

  4. Comparison of commercial battery types - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_commercial...

    Low self-discharge nickel–metal hydride battery: 500–1,500 [14] Lithium cobalt oxide: 90 500–1,000 Lithium–titanate: 85–90 6,000–30,000 to 90% capacity

  5. Crystal oscillator frequencies - Wikipedia

    en.wikipedia.org/wiki/Crystal_oscillator_frequencies

    Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz.Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.

  6. Ultralife Corporation - Wikipedia

    en.wikipedia.org/wiki/Ultralife_Corporation

    Ultralife Corporation designs and manufactures batteries and communications systems worldwide. [4] Ultralife serves government and defense, medical, safety and security, energy, robotics and other customers across the globe through the design and development of a range of products.

  7. Digitally controlled oscillator - Wikipedia

    en.wikipedia.org/wiki/Digitally_controlled...

    The VCO designs of the time still left something to be desired in terms of tuning stability. [2] Whilst this was an issue for monophonic synthesizers, the limited number of oscillators (typically 3 or fewer) meant that keeping instruments tuned was a manageable task, often performed using dedicated front panel controls.

  8. Oscillator sync - Wikipedia

    en.wikipedia.org/wiki/Oscillator_sync

    Oscillator sync is a feature in some synthesizers with two or more VCOs, DCOs, or "virtual" oscillators.As one oscillator finishes a cycle, it resets the period of another oscillator, forcing the latter to have the same base frequency.

  9. Costas loop - Wikipedia

    en.wikipedia.org/wiki/Costas_loop

    In the classical implementation of a Costas loop, [4] a local voltage-controlled oscillator (VCO) provides quadrature outputs, one to each of two phase detectors, e.g., product detectors. The same phase of the input signal is also applied to both phase detectors, and the output of each phase detector is passed through a low-pass filter. The ...

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