Thank dbanner for the advice. The anoying thing is that when I soldered components this step was good .....
I will check the pin of the chip tomorrow it's late here. I use J113 bought on aliexpress.
I have only a TL2072 it is supposed to be a good replacement for Tl072.
I will check the pin of the chip tomorrow it's late here. I use J113 bought on aliexpress.
I have only a TL2072 it is supposed to be a good replacement for Tl072.
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