I was reading up on the Little Angle chorus, and one of the mods to reduce noise involves strapping a 100nF cap across the GND and OUT legs of the 7805 regulator. Could this be profitably applied to something like the Zero Point and help block noise from entering the PT2399 to start with?
There's already a 100nF filter cap from +5V to ground in all versions of the Zero Point.
Ah -- I missed that. Thanks Jon.
Never mind...looked at the wrong spot on the schem. It's there.