C5s

[Joe Gwinn]

Yes, but this is what it does when it measures L and Q as well. It does that fine, it is just the C measurement that doesn't correlate with other ways of measuring (like coil resonance method). My guess is that for the L portion, modeling as a series R + L works pretty well, while for a *distributed* capacitance, neither series nor parallel works very well.

You are right that the Extech 380193 is basically useless for measuring the self-capacitance of an inductor, but the fact that the capacitance is distributed has very little to do with i, and one will have the same problem with lumped . The root cause is far simpler: The inductance simply swamps the capacitance until one gets near resonance. The Extech measures at 1 KHz, while most pickups self-resonate above 5 KHz, with 10 KHz being more common.

For guitar pickups, the SER setting for L + R does work best, and we have standardized on 1 KHz (versus 120 Hz).