First, I apologise if this has been asked and has been answered already, but I have throughly searched the forums and haven’t found an answer. I’m a total noob when it comes to reading schematics, but am going to try my hand at building a midibox sid. Anyhow to get to my question, is there a parts list for the optimized PSU? I’ve been able to find the schematic but don’t fully understand what everything on there is. Thanks in advace for your help.
B40C800 is a bridge rectifier.
Everything with values in nF is a ceramic or polyfilm capacitor.
Everything with value in uF is an electrolytic capacitor.
The ///\ is a resistor, value is in Ohm (that’s for the LED).
The power switch is a DPDT.
7809 is an 7809 voltage regulator.
There’s really not much to it 
B40C800 is a bridge rectifier.
Everything with values in nF is a ceramic or polyfilm capacitor.
Everything with value in uF is an electrolytic capacitor.
The ///\ is a resistor, value is in Ohm (that’s for the LED).
The power switch is a DPDT.
7809 is an 7809 voltage regulator.
There’s really not much to it
That’s exactly what I needed, thanks!
If you look at the schematic where B40C800 is, you may substitute it for 4 diodes of type 1N4001, as they are shown in the schematic.
A bridge rectifier is really just 4 diodes in one pretty package.