Retrotechtacular: Circuit Potting, and PCBs the Hard Way - There was a time when the very idea of building a complex circuit with the intenti... - https://hackaday.com/2023/06/15/retrotechtacular-circuit-potting-and-pcbs-the-hard-way/ #retrotechtacular #graphite #phenolic #printing #potting #weapons #silver #glass #wwii #pcb #tre