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  1. #11
    Hi,
    some help here please. I am not very good with electronics.

    I am looking at the pdf and i see some difference between the 2 drawings

    some questions:

    -the caps on the 1st /hand/ drawing go to ground and on the second not? I started soldering like the first, then saw the difference, so which one is correct?

    -there are 2 more caps on the second drawing /DIR , STEP/ ??

    -i will use +-12v from PC ATX instead of 7-9v do i need to change something? UA741CN


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    project 1 , 2, Dust Shoe ...

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