Yes that's correct.
Its an N channel mosfet so the current flows from drain to source.
I always remember it by water flows from drain into sewer (source.)
To answer the question, yes, you have identified the terminals correctly.
And no, this isn't the wrong forum necessarily, as this is a fairly common circuit in question, and it is frequently used in power supplies for tube amplifiers, and that's where the schematic posted comes from
We discuss a little more than just tubes here you know
Better take all the capacitor and transformer questions too, since they aren't tubes either
There's a bunch of cross pollination between these types of things in modern electronics hobby stuff. No sweat.
And no, this isn't the wrong forum necessarily, as this is a fairly common circuit in question, and it is frequently used in power supplies for tube amplifiers, and that's where the schematic posted comes from
We discuss a little more than just tubes here you know
Better take all the capacitor and transformer questions too, since they aren't tubes either
There's a bunch of cross pollination between these types of things in modern electronics hobby stuff. No sweat.
What part of a POWER SUPPLY ripple filter does not belong in a POWER SUPPLY Forum?
Even worse when OP specifically mentions:
Unless you think DIY Audio shoulld have separate Power Supply and PS Forums.
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