- Sep 8, 2021
In that case you're talking about I would also measure which of the two is cleaner cause the effect you see here can also be seen (way worst than this) if a motor/AC/heat pump/LED lights/etc are connected to the same phase.OK, that is what I thought but I needed to confirm.
This is not the situation that the post about AC phase was talking about. In the USA your home's power, and any AC outlet you plug in to, comes from one of two phases of 120VAC AC power that are delivered to your home. Which one of these you are using is determined by how the wires are connected in your circuit breaker panel. Both of these are exactly the same at the plug, with one "hot" lead that has 120VAC on it and another "neutral" lead that is tied to ground at the breaker box. These are 100% equivalent, the same, exactly so, as far as an amplifier is concerned. The only difference is that the relative phase between the "live" wire for either of the power legs is 180 degrees out of phase. That is not at all the same as reversing live and neutral leads.
So, my point here and in all my comments about this topic is that your plots and that test have absolutely nothing to do with what that post was about.
Noise is a thing you know,it manifest itself in various ways and electronics absolutely care about it.
Do you want to see a dac connected in the same line with a led strip for example?It's ugly but let's not contaminate the thread more.