Yeah, get two 1000 uF at 50 volt (or 25 volt) electrolytic caps and solder one (properly polarized or you’ll make blue smoke) between the +18 V point and ground on the little marked strip and the other between -18 v and ground. Use normal precautions: Measure voltage on the terminals first, then turn off power. If you are not experienced at basic circuit design, do not attempt this mod yourself.
