So as the PV series progressed they added regulator sections, for reliability and channel isolation.
The 10, having a single regulation pathway, would get noisy on both channels at the same time, but I believe by the 12 it was staggered, with one shared regulator, followed by two individual sections.
In either event, I strongly recommend heat sink fins on those little regulators to improve the lifespan. About $0.20 or something, super cheap. Use a tiny bit of grease and pop them on.
Best,
E
The 10, having a single regulation pathway, would get noisy on both channels at the same time, but I believe by the 12 it was staggered, with one shared regulator, followed by two individual sections.
In either event, I strongly recommend heat sink fins on those little regulators to improve the lifespan. About $0.20 or something, super cheap. Use a tiny bit of grease and pop them on.
Best,
E