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+--- Thread: weird multimeter stuff... is this normal? (/showthread.php?tid=7227)
weird multimeter stuff... is this normal? - CTN - 12-15-2014
I'm pre-wiring a harness for my strat before I rout it and load the new pickguard in.
I always use a continuity test on my DMM before moving onto the next solder joint, just to make sure that my shiny new joints are good to go. But I just had something weird happen.
I wired up the neck humbucker (4-con) to the switch, in full on series mode (red+white soldered and taped), and checked to make sure it was grounding properly. Just for shits n giggles I was gonna continuity test the pickup. And when i went from hot to ground wires, I got no assuring beep letting me know there was continuity. Weird thing is, I immediately got a reading on the DCR, and it's registering a steady 7.7kohms, which is right around where it should be. Each coil is reading steady DCR as well. So how is there no continuity, but DCR is uninterrupted and steady?
That doesn't make any sense.
RE: weird multimeter stuff... is this normal? - CTN - 12-19-2014
dropped 'em in today after finishing routing.
did the tap test and it works just fine. woo.
re-string/setup tomorrow. And jam session tomorrow too. yay!
RE: weird multimeter stuff... is this normal? - Dr. Vegetable - 12-21-2014
The short answer is that 7,700 Ohms is not very close to zero. For a continuity tester to beep, it wants to see a very low resistance. More than a few tens of ohms and most meters will not tell you there's a good connection.
If you had 7.7KOhms of resistance in all your solder joints, I'd go back to pouring coffee for a living. So you shouldn't expect a continuity beep on a pickup coil, but a steady resistance reading tells you there is continuity.
RE: weird multimeter stuff... is this normal? - CTN - 12-21-2014
While that is queer as fuck, I will accept it because in some weird twisted scientific way it makes sense.
Thanks bro
RE: weird multimeter stuff... is this normal? - GoldenVulture - 12-21-2014
He's right . That's the way they work.