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FDP Forum / The 'Pup' Tent / Lawrence Pickups

Malcolm
Contributing Member
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Edmond, OK

Nov 6th, 2017 12:55 PM   Edit   Profile   Print Topic   Search Topic

Don't know if many people on this forum pay attention to Bill's p'ups.
I'm trying to remember what I've forgotten about his 'Henries' ratings. Can't find anything on his site detailing them.
Help?

Peegoo
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Enjoying

the downtime
Nov 6th, 2017 06:14 PM   Edit   Profile   Print Topic   Search Topic

Henries are a measure of inductance. You can use DC Ohms resistance and Henries ratings as a starting point, but they are not indicative of a pickup's tone because there are too many other variables like coil size, wire gauge, wrap type, magnet type and Gauss rating, etc.

Here he mentions how inductance affects highs in the signal

Achase4u

U.S. - Virginia

Nov 6th, 2017 07:53 PM   Edit   Profile   Print Topic   Search Topic

They are mostly good measurements of consistency in manufacturing and not quite as good for judging resultant sound. However they are great for identifying when something is a miss(or materials have changed) if you are trying to make the same pickup time and time again.

(This message was last edited by Achase4u at 09:54 PM, Nov 6th, 2017)

Malcolm
Contributing Member
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Edmond, OK

Nov 8th, 2017 11:26 AM   Edit   Profile   Print Topic   Search Topic

I knew that you couldn't judge tone by henries. But, I thought you'd be able to tell if high or low output.

Want a low output p'up.

Achase4u

U.S. - Virginia

Nov 8th, 2017 02:02 PM   Edit   Profile   Print Topic   Search Topic

Unfortunately no, that isn't an indicator of output by itself. I think Bill Lawrence stated something that you can vaguely get an idea of the the mid range of a pickup with Henries. That was on the old site.

For instance, swapping in alnico 3 in the same pickup that had alnico 5 will shoot the Henries up because of the extra iron content. This doesn't equate to more output though, as alnico 3 is a weaker magnet, and it doesn't say much about the output in mV of the inductor as a whole. It would be nice to have a standard for mV ratings on pickups but it is hard to do as you can't just push a signal through it like audio equipment.

FDP Forum / The 'Pup' Tent / Lawrence Pickups




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