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  1. M

    Drop voltage too hight

    I just assembled my first circuit using just a transistor and a resistor, so I feed my driver with a single li-on cell. It does not work, i've read just now about the LM317T needs Vf+3 V🫡. Is there any transistor wich drop voltage is less than 1V? my laser spec: 2,5V 0.8A
  2. M

    HI

    hello i'm Mariel 27 years old. I would love to learn how to make lasers




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