Power Up ANYTHING With Old Cell Phone Chargers.

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About: First DIY then ask WHY

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    3 Discussions

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    russ_hensel

    4 years ago on Introduction

    Actually you should not use the pot at all. It is inefficient, cannot supply much current, and does not regulate. Use a regulator or just stick to rated voltage. A pot should generally be used only for a fixed, know load, and after the revelant equations for power and voltage are checked.

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    gmeadows3

    4 years ago

    You might find a 50ohm rather than 50kohm pot more effective and give wider control stability but as you stated a linear regulator would be far superior

    1 reply