So basically I am making these tattoo power supply adapter boxes. the function of them is that they have a 1/8 cord that plugs into a variable 2v-18v DC power supply and from the adapter box there is two 1/8 input jacks so that you can run two clipcords and there is a on/off/on toggle switch to switch between jacks. There is a single red 2v 20ma led for each side that should turn on whenever each side is given power by the footpedal connected to the power supply itself. Now the problem I am having is that I cannot find a resistor that will power these leds. somehow when i made my first one whatever resistors i used worked and i went out and bought the same resistors and now i cant get any power to the leds at all. Ive tried 1k ohm, 470ohm, 10k ohm, etc and nothing works at all. I just have no idea what to do next and getting these working is the last part to finish these boxes.
here is the simple wiring diagram for how ive wired the insides of the boxes, is there a better way to wire the leds so that they only turn on when each side is given power from the power supply? and what should i do about the resistors? any help is appreciated thanks!
here is the simple wiring diagram for how ive wired the insides of the boxes, is there a better way to wire the leds so that they only turn on when each side is given power from the power supply? and what should i do about the resistors? any help is appreciated thanks!