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Joined:
May 2002
Posts: 1445
Location: Nova Scotia, Canada | Hi, just wanting to find how to properly test the UK2 pickups I have aquired, for output. I don't want to install them just to find out they are weak. I have a digital ohm meter. There are two sets of leads coming from each pickup.
Also, were the bridge and neck pickup in the UKII designed to have equal output or was the bridge pickup wound to have a higher output as with some guitars?
Wayne |
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Joined:
February 2002
Posts: 5750
Location: Scotland | Wayne, a multi-meter can tell you if a pick-up is working or not, and not a lot else. You need to set the meter to read DC ohms. Both coils of a huumbucker should show the same DC resistance. Beacause the coils of the UK11 pickups can be switched series or parralel they have what is known as 4-conductor wiring, so you can check each coil individually and also the total resistance of both. I'm pretty sure that both the neck & bridge pickups have identical winding. |
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Joined:
May 2002
Posts: 1445
Location: Nova Scotia, Canada | Thanks Paul, have you ever checked any of these pickups to know what a ballpark resistance reading would be?
Wayne |
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Joined:
February 2002
Posts: 5750
Location: Scotland | Wayne, I've never had cause to check mine, but at a guess, as they are pretty high-output pickups the combined dc resistance will probably read in the 9k -12k range, maybe even a little higher. Let me know.
Paul |
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Joined:
May 2002
Posts: 1445
Location: Nova Scotia, Canada | Hi Paul T, I had a chance to check my UK2 pickups today and the readings on each pickup, reading each winding separately, are:
Bridge - 11.34 and 11.35 K ohms
Neck - 11.17 and 11.18 K ohms
Bridge, coils wired in series - 22.80 K ohms!
This seems really high but that is what it is reading, unless you have to multiply this by a percentage, as with figuring out speaker ohmages.
Wayne |
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Joined:
February 2002
Posts: 5750
Location: Scotland | Wayne, The combined reading of the coils in series should be the individual resistances added together. In parralel it should be 1/4 of the sum of both. You're right about the resistance seeming high, a pickup with a DC resistance that high would have a very high impedance and the pickup could lose output because of the mismatch to an amps input impedance. 15K is the about the max & pickups with that much wire tend to be loud but sound like crap. Check the individal coil resistances again. Either way I think you can be pretty sure your pickups are working fine. |
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Testing Pickup Output
