> Am 22.10.2017 um 03:46 schrieb Mike HEQX <mike at heqx.com>: > > Why can't gear run on anything you plug in either polarity dc or ac. Using a diode bridge as protection should allow you to do this. Some of my gear will run on anything you plug in. I love that. Won’t work if a module requires a dual (+/-) supply, no? Ingo