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GB for Baby Huey PCB

Hi
The power module is not working properly for me with this(C13) capacitor.
with this cap. I have 3V at the output of LM317.
so, I removed capacitor and now I have 12V, which is OK, and relay is working properly.
any ideas?
Знімок екрана 2024-05-30 о 14.54.55.png