mal-2 gate level

Hi there,

I just finished a MAL-2 kit (bought at Thonk), and it seems to work as advertised, except that the gate/trigger level looks pretty low (I see 2V bumps, using an O'Tool). Is that normal behaviour, or could it indicate a build problem?

Thanks for your thoughts!

Comments

  • Good find!
    try removing R28 (3k3)
    bottom PCB in the top left corner next to the AVR.
    I'll update the build manual soon.
    Seems I planned to use 12V for the gate out voltage source but connected 5V. The voltage divider is dimensioned for 12.

  • OK - sorry for noob question: do you mean just removing, or also bridging?

  • @eewee said:
    OK - sorry for noob question: do you mean just removing, or also bridging?

    looked at schematic, I guess that means remove, rather than bridge :-)

  • yes remove. I tried it here and it solves the problem.

  • Thanks! I'll make the modification next time I have the soldering iron out.

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