Oberheim FVS-1 w/ Custom Patch Point Mod For Sale. We replaced the defective programmer with a very useful patchbay that greatly expands this 4 voice's functionality. This mod took around 25 hours of skilled labor to perform. This is in addition to many, many hours of restoration, including replacing of the original tolex and case hardware. It was a huge investment of time and money, but in the end has resulted in a 4 voice that's better than the rest.