Hi. with reference to my electric guitar fitted with Fernandes' sustainer system (see my previous post), I have yet to try powering it from a DC converter, but I have been fitting a replacement pickup, with a hotter output, to make the sustainer sustain better. The replacement pickup has no shielding, and creates a hiss and whistle when the sustainer is on. This disappears when my fingers touch the strings. Thinking it needs to be grounded, I touched a wire from, first the metal pickup cover, then from the mounting screw (which screws through the pickup chassis) to the bridge, tailpiece and then to the pickup selector (where the previous pickup screen was grounded). All the above killed the output. Does this mean I've connected the new pickup back to front? The first pickup had ground, red and black wires. The new one has just red and white. I wired the red to red, and white to black, assuming red would always be positive!
I'm sure this is a very basic error on my part, but it reflects my very basic electrical knowledge!!
I'm sure this is a very basic error on my part, but it reflects my very basic electrical knowledge!!