One of my first folly's in to analogue. Its a warm clean amp in a nice wooden box. ( That was reused from some ancient piece of lab equipment. An old ph meter maybe, i still have the board. ) To finish it off it needs some knobs and a sister.
This 24v drill needed a new power pack so two 12v lead acid battery's were put in series. Its cumbersome, but the rewards are worth it. The 7A just keeps the drill going all day. My drill of choice.