When the low-voltage DC revolution comes ... so there’s not much problem matching them to the source. We’d be stoked to have DC sockets, and devices that plug into them, all powered by ...

Now all we need is a voltage source to control it. First up, a potentiometer hooked up as a voltage divider. One end to VCC and the other to GND, with the middle (wiper) terminal to the VCO’s ...