I have an early FT-101 SN below 25000. Problem is it has no 13.5 volts. It keeps blowing D7 and shorting D8. I have replaced them with IN4004's which seems to be what most people use. I have also replaced C6 with a same value ceramic cap. Both 10.5vac lines on the xfrmr are good. The diagram I have shows the 13.5v going to the power jack but does not show where it comes out to the rest of the system. All other voltages at the xfrmr are normal. I suspect there is a short somewhere but I have no idea where to start tracing the 13.5 through the rest of the system. Any help is appreciated.?
