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4.79 out of 5
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  • 09/05/2021

    Received on time and well packaged and no hassle. It is a voltage regulator, enters DC up to 30 volts and one can regulate the output through the blue trim-pot that is in the circuit. But it can also be exchanged for a potentiometer of equal value and put on the front panel of some equipment. But it is a very small circuit the aluminum sink is small, in case it heats up a lot it should replace with a larger one and resort to a forced ventilation, but if we work with loads below an ampere and for small times, there should be no problems. The five pieces came individually wrapped. I recommend this circuit.

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  • 05/12/2020

    That's just what I asked for. No less.

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  • 22/03/2021

    Good product

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  • 24/04/2020

    Hello, I did not receive 5 pcs LM317, there are only 4 pcs but I received 4 small motors in a sachet that I did not order and that are of no use to me. It's a shame for the LM317 circuit, which I will miss to carry out my project.

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  • 09/10/2020

    Good product, received according

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  • 31/05/2021

    Todo correcto y rapido

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  • 25/04/2021

    Received in perfect condition.

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  • 13/04/2021

    very happy

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  • 31/03/2021

    Working great already used 3 of them in my projects

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  • 22/03/2021

    Standart voltage downer and also heater.

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