Does anyone know if parts have gotten easier to find for the delta 46-460? In the last couple of days, I have had some problem with the speed control. it would start up slow, then suddenly speed up to the speed it was supposed to. I've also had it running at a consistent speed, only to slow down (I wasn't turning at that point) for a few seconds and then speed up. I have blown out the box several times, but I suspect one of the components is starting to go.Thanks in advance.Dave