I picked up a cheapy LCF meter from eBay. The one I purchased (which I don’t actually recommend so far) is http://www.ebay.com/itm/121228917349 from xinyangshi. Identifying markings both on the PCB and in the firmware’s splash screen are:
2011.05.27
XLDZ
The screw terminals seem to be a problem, so I’m hardwiring the inductors now. I pulled two pins from a 2.54mm pin header and soldered them onto the bottom of the LCR meter PCB, then soldered each inductor onto the ends of those pins.
I measured:
- ~4.5uH - Bourns SRP7030-3R3FM
- ~3.65uH - physically damaged Wurth Electronics 74437349033 when I hold it together! - when I don’t hold it the values range from 4uH to 8uH depending on the crack width (4uH is the smallest crack width I can get to stay put).
- ~8.7uH - The inductor from the new version DRY driver
- ~18uH - The inductor from DX SKU 20330
Edit: redid some measurements.