At last, some work has been done on the power supply. I decided to redesign the whole module, but keeping the panel design and functionality intact. The +/-5V bias voltage sources are not yet done, but the +/-9V and +18V sources are working fine. I will post the schematic for this later on.
This is the new PSU board. Still missing the parts for the bias voltages.
As you can see, there is a toggle switch instead of the original slide switch. The reason for this is that I wanted to avoid routing mains power to the panel, and for that I needed a two pole switch to be able to turn both the positive and negative rails off with the same switch. I couldn't find a two pole slide switch in the same size as the original, so I will have to fix this later. For now, the toggle switch will do.
I put a fuse holder at the side of the box so that I could use a fuse and access it from the outside. This goes against my intention to keep the look identical but I think it is worth it, and the fuse holder is not visible when the case is open. I attached the transformer using straps to avoid drilling another hole through the box.
Trying to keep the wiring tidy and separate the mains power from the low voltage stuff.
