I lost 12v again shortly after taking the video. I think the problem was a short between the motherboard and bottom of the case (the RF shielding appears to be conductive). Some of the legs on the axial capacitors were still a little long after cutting so I insulated them. I also have to replace C3 now that I read that its part of the booster circuit. Occasionally I get a crackling sound from the speaker (you can hear it happen in the video), which I suspect is that cap acting up. When I replaced the other radials, I did a pretty through cleaning of the area as they had leaked pretty bad. If I have any further problems, I'll rip them out and clean it all again.