I haven't had a chance to test the transformer for shorted turns, but I will shortly.
The power supply failed partially when it was installed, and once I removed it failed the rest of the way. The second time it was completely disconnected, only attached to a pc psu tester (just power switch and led indicator, no load). It seems to be a very common failure for these scopes, since every mention I found on this thing mentioned power supply issues. I will see about hacking a pc psu, probably just to test the pc side of things, but it has very weird current requirements. Thanks.