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  • Shipping options have been updated

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    by

    Andrew
    in

    We’ve updated our shipping options to make ordering from UFElectronics easier. We’ve added new destination countries and reviewed the available shipping methods and prices. Shipping costs have also been corrected and updated to reflect the current rates. When placing an order, you’ll now see the available shipping options and prices for your destination at checkout.…

  • Testing v8.1 of the BJT Transistor Experimentation Board…

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    by

    Andrew
    in , , ,

    …with a Colpitts oscillator setup. – See the schematics in the images. Version 8.1 adds: * Optional Vcc+ supply filter using resistor, ferrite bead or inductor * Collector resistor split for gain boost experiments * Additional feedback network for common collector stages * Extra ground point for cleaner external feedback wiring Everything worked as expected.…

  • The Class AB Amplifier explained on a conceptual level

    The Class AB Amplifier explained on a conceptual level

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    by

    Andrew
    in , ,

    Based on the Motorola Application Note AN-422 Many classic audio power amplifiers from the 1970s and 1980s were built around a small collection of elegant circuit techniques that remain relevant today. One such example is the Motorola AN-422 Class-AB amplifier topology. While schematics of these amplifiers are widely available, understanding why each section exists is…