[sdiy] Quick Question about Grounding Power Supplies

[Shawn Rakestraw]

Some of you may remember helping me learn how to design some PCBs a few
months back. I have been using one of my homemade eurorack cases for a
while now. To refresh the idea, it is essentially an electronotes design
where a 24V center tapped transformer is regulated down to +12V and -12V.

My question is this - Should the ground pin of the power cord be connected
to the center tap of the transformer? Currently, I have it connected to the
"Earth" terminal of the power switch and it is also connected to the "Body"
of the transformer, but I have left the center tap "Floating".

After putting a Make Noise Pressure Points module into the case and
noticing what looks like a lot of noise on the signal, I think that maybe
the earth ground should connect to the center tap and floating ground.

Thanks for your advice.

- Shawn
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