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![Am I connecting this barrel jack correctly? Do I need a diode on pin 1 and if so what would be it's purpose? I've seen some examples on google with and without Am I connecting this barrel jack correctly? Do I need a diode on pin 1 and if so what would be it's purpose? I've seen some examples on google with and without](https://preview.redd.it/am-i-connecting-this-barrel-jack-correctly-do-i-need-a-v0-bx0ifymiwwi91.png?width=600&format=png&auto=webp&s=3f521ffec552e7cf4801d00406d572c2136d8e97)
Am I connecting this barrel jack correctly? Do I need a diode on pin 1 and if so what would be it's purpose? I've seen some examples on google with and without
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