So who wants to play 'guess that core' ? I should have put the black o-ring on first, but i've swapped out the rear core to have one black ring to tell them apart.
I cant decide what ohm these are though? Is there a special technique to make this meter read more reliably?
DankD
As Furianlord mentioned, you should position the negative lead on the threads, not the body. And I can't quite make out the dial on your DVM, but it appears that your meter is set to auto-range ohms, which is one of the reasons it's taking so long to come to a reading. If your meter supports a manual ohms setting, set it to its lowest range. Also, to get a feeling for your meter, just hold both leads together and see how long it takes to get a stable reading (of hopefully 0), then move the leads around a little and see how much that effects the reading. When you have a feel for your meter, then try it on your cores, using the threads not the body. You can try first holding one probe on one side of the threads (parallel to the threads, so the whole side of the probe is sitting in one of the valleys of the threads), and the other lead on the other side of the threads, and then see how much your "wiggling" while holding the leads effects your reading. Get a feeling for your meter and your probes before you check the core resistance itself. You may not have to rely on using the point of your probe, which is hard to hold steady, at least for the probe on the threads. I just measured the eight TET cores I have here the other day, so I know what you're going through.
Or, you just use OF's test, which should be easy to do; one core should lightup faster than the other,
assuming the same charge on the battery for the test.
And by the way, there is no "rule" that you have to use the
slightly higher power core for juice and the
slightly lower power core for concentrates. Juice people generally have a lower tolerance for waiting five seconds to take a hit, hence the higher power core. But since you are at home with both, you can just taylor your use to whatever makes you happy. Maybe the EL core will have a bit too much "throat" hit for your likes with a particular juice. So you use the EO core for (that) juice. Same thing in the other direction too. You might have a concentrate you really like, but it takes a lot of heat to get it going (melted).
Looking forward to your continued experiments, and I loved your video!