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In Reply to: RE: I second the ohmmeter either digital or analog before you can continue. posted by PAR on September 26, 2016 at 01:46:59
The reason I recommended a digital ohmmeter was to prevent damaging the cartridge coils. Digital ohmmeters operate with very low voltage and current and will probably not damage cartridge coils. On the other hand, analog ohmmeters might possibly fry the coils.
Good luck,
John Elison
Follow Ups:
I fried a Benz med output MC with my Fluke meter.
In fact, when I got crazy results on one side, I tried the other and melted it also!I've measured many MM cartridges which have much higher resistances than MCs.
I suppose that part of the reason newer/digital DVOMs can measure very low resistances accurately is that they use higher current across low resistances?
Whatever, can assure you that the Fluke 88(?) positively melted down the coils, and fairly quickly as well!
Edits: 09/28/16
I should have qualified my answer. I have a Fluke 45 DMM and it puts out nearly five-times the current as my B&K DMM when measuring resistance. The safe way to measure coil resistance on a low-output moving coil is to place a 1000-ohm resistor in series with the cartridge coil. Measure the resistor first and then place it in series with the cartridge coil. This will protect the cartridge coil.Sorry!
John Elison
Edits: 09/28/16
Don't feel bad OP... I just moved and somehow managed to damage the entire cantilever on a 100 hour Sumiko Blackbird....my wife was amazed I was so calm...she didn't realized I was just recovering from the shock!
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