karljam wrote:
Howdy! I'm trying to power my Korg Kaoss Pad KP3 which wants 700mA 12v center positive with a pin in the barrel. The strange barrel is no problem, I made an adapter which reverses polarity and adapts from a normal barrel to a Kaoss barrel. I also have another barrel adapter which I have successfully used with a different 12v 2A adapter
However, my current doubler doesn't seem to work. I'm pulling from two 12v 375mA outputs (Strymon Zuma) into the Voodoo current doubler, through the barrel adapter & polarity reverser, which should be just more than enough for the 700mA KP3. The thing doesn't light up, even for a brief second.
Am I doing something wrong?
Are you able to test the polarity/barrel adapter cable you've made using 12V 2A power supply?
What is the barrel connector you used on the cable you've made? Judging by pictures of the KP3+ (is yours the "KP3+" or is it "KP3") it looks like a fairly normal Barrel connector in either 2.1mm x 5.5mm or 2.5mm x 5.5mm.
Are you sure you have the Voodoo Lab
Current Doubler Adapter (the one with the Green end), and not the Voltage Doubler (all ends black)?