What capacitor tester do you believe?

[Conrad Hoffman]

Never thought about a D-meter. Since D is just the tangent of 90 degrees minus the phase angle of the cap, and you can build a decent phase meter out of a few gates, it might not be too hard. OTOH, since the actual circuitry of almost anything is trivial compared to the amount of work to build it and put it in a chassis, and given the DDS chips and such we now have, I've wondered if one could do a DIY version of the high end Keysight or Chroma (formerly QuadTech) wide range LCR meters.

[cncjerry]

I have a big, clunky HP 4262A and an Agilent 1733C I believe, that I  bought here.  They both read the same to .1 of anything, which surprises me.  You really have to be careful though, with the leads when reading .1pF level accuracy because just the slightest bend will throw them off.