Yeah - my thoughts exactly. I was thinking that there was going to be some magic in there... Not really.

OK.... So this is all quite preliminary. There are a few spots that I know the schematic is incomplete / wrong - i.e. the ring mod section. I did not draw the power supply section at all yet. I also didn't populate the component values. The caps in particular are tough because the SMD caps in my ver...

I bought one of these (SMD) and traced it - it was hell. It is a multilayer board and there are signal traces on the inner layers, not just ground and power. The layout is such a spider-on-LSD affair that I have to think it was done on purpose to confuse this community. 😀 It took me quite a bit of t...