Soldering is so close to soldiering as in soldiering on despite taking on fire and casualties. like my fingers, and my workbench, and quite possibly my lungs! I tried creating my own dc jack and i t hink i am missing something about how to solder. Even drilling in a set of my own helping hands did not make it any easier. It’s like it requires four sets of hands to warm the components, then coordinate the soldering gun and the solder. i had to use the 5 volt output from my arduino to power my board for this lab, which is disappointing, but it was worth it, seeing the multimeter values for voltage and current with switches and LEDs in series parallel.