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The DC resistance will affect the self resonance of the pickups (all other things being equal), however this may take the thread in a direction that we never recover from....
Regardless, I think that the key issue here is the fact the buyer didn't have the common sense and / or cojones to contact the seller before raising a dispute which has had negative consequences on the seller.
It's quite possible the seller doesn't have a multimeter (not everyone does!, so they quoted the specs from the manufacturers website.
Calibration, as ICBM says, may also be a factor here.
"750mV on E major chord using a set of Ernie Ball Super Slinky 3mm from the pole pieces, and a Tortex 1mm plectrum"
Formerly TheGuitarWeasel ... Oil City Pickups ... Oil City Blog 7 String.org profile and message
I also sympathise with the seller here, I just don't think giving the buyer a hard time is justified
I think SD do quote +/- 10% so assume it is possible, but they are right at the outside of that.
i know I haven't seen anywhere near the number of pickups that you have, but have seen a lot, and don't remember any being more than 2-3% away from quoted specs
Not necessarily true.
I just Googled tolerances on wire diameter. It varies by wire manufacturer but some of them quote figures equivalent to 10%.
Resistance is inversely proportional to area - which is proportional to the square of the radius. Radius is directly related to diameter so would also have a potential 10% tolerance. The maximum 10% tolerance would actually give a cross sectional area 21% bigger, which would give a DC resistance that is 17% lower.
I don't know the tolerance on the wire that Bare Knuckle use, but it is entirely possible that this has the same number of winds on it that the other Mules with higher resistance have.
It's also possible that it is a Stormy Monday.
The only way we would know for sure is for someone to take it apart, and count the winds, and to analyse the magnet to work out whether it's A2 or A4.
As others have said, DC resistance is not a good way to measure pickup output.
Being concerned and the item being fundamentally defective are entirely different things. Ebay doesn't respect that, but theoretically if this were to go to court and OP found a quote from Tim Mills stating that BK works to a variance of +-10%, then the pickups would not be technically defective nor 'not as described'.
Brad and I have sorted this out very amicably, and we are moving on. The pickups read low enough for me to be concerned that they weren't what I wanted, or expected. Brad accepted that, without hesitation and didn't give me a hard time at all. What followed here is what it is.
Interestingly, I contacted Wizz pickups this week about a set of their Premium Clone PAFs. Their website specified 8.3k for the bridge. I asked if this could be slightly overwound to 8.5k and they said yes no problem. So at least they are capable of producing pickups within a tighter tolerance than 10% of spec.
Before anyone says that I won't be able to hear the difference between 8.3k and 8.5k, yes you are probably right, but I do want a pickup on the higher side of the original PAF output range and this is at least one way of ensuring this happens.
All the best,
Rob.
I'll do another video!
Rob.
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