To make sure I am winding correctly I am trying to measure the toroids with. a B&K 880
One confusing point is called for inductance is 0.45uH for L4.? But multiple the calculators call for 9 turns.? 8 turns is 0.36uH.
Second confusing point is the meter does not want to measure it.? getting -1.??? H. with alligator or kelvin. I calibrate before using either lead.
I have known good inductors.? 1Uh and above, and they test correctly.
Am I over thinking this? yeah probably, Just wind and go, just trust the instructions?