Potentiometer:
As an alternative to the digital interface, an analog potentiometer can be used to dial in the
power setting. If connected to the UP/POT pads, the DNA 30D will automatically detect analog mode
and use the potentiometer instead of the buttons. Resistances between 1k and 10k ohms are
recommended. To reverse the direction of turn for adjustment, reverse the Potentiometer – and
Potentiometer + connections. Any type of potentiometer can be made to work – shaft, shaftless, slide,
etc.