Come along chaps. It's obvious Jay's got the right circuit, he just misunderstood what earth/0V is. We don't need geodetics, at least we don't yet
If he comes back, we just need to determine how his power supply is wired to it (and whether it's properly DC!), whether he's using the right choke, whether he's damaged any of the semiconductors in earlier tests, whether there's a layout problem (I'm not a switched PSU expert so I wouldn't know about that), etc.