SH-4 DCR measurement no where near what is listed.

Sinster

New member
I understand DCR changes with temperature and other factors, but it's not close. I used my Fluke 189 which is calibrated yearly. I also used my 20 year old Craftsman. Website chart states it should be 16.4kΩ I'm reading 17.5kΩ.... Fluke leads are .0 and the Craftsman are 1.0Ω.. Even with those factored. FWIW I have another pickup from another manufacture that's also the same out. I also tested my SH-1, SH-2, Gibson 57, and a few others and they are measuring what is called out.

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Re: SH-4 DCR measurement no where near what is listed.

I hate to break it to you, but that's within the normal range. I have a JB that is right on that 17.50K ohms.

In a related note, I was able to measure a lot of the Michael Schenker pickups made by Dimarzio for Dean Guitars. The bridge pickups ranged anywhere from 15.50K ohms to 19.00K ohms.

So long story short, your pickup is within the normal range.
 
Re: SH-4 DCR measurement no where near what is listed.

One other thing, Duncan doesn't necessarily print the exact spec. Look at the DCR for the Custom Custom (14.4k), and the Custom (14.1k). Yet we know they're made from the same coils.
 
Re: SH-4 DCR measurement no where near what is listed.

Get out your razor knife and take 1K of resistance off.
 
Re: SH-4 DCR measurement no where near what is listed.

I hate to break it to you, but that's within the normal range. I have a JB that is right on that 17.50K ohms.

In a related note, I was able to measure a lot of the Michael Schenker pickups made by Dimarzio for Dean Guitars. The bridge pickups ranged anywhere from 15.50K ohms to 19.00K ohms.

So long story short, your pickup is within the normal range.
If I basing my decision on the DCR output (which many do) of a pickup then the 16.5kΩ shouldn't be listed under the specs as such... If I wanted a 17.5kΩ I would have went with a SH-15.

A 17.5kΩ has more winds than a 16.5kΩ and I'm pretty sure SD know exactly how many winds it takes to get to the 16.5 ballpark.

Please show me another winder out there that doesn't put there DCR in the description or a huge range of 1k for a pickup.

From SD description of the JB. No where does it state 16.4-17.5 that's a huge "range". Like I said I understand there will be a change in DCR with temperature, but not a 1k difference.
specs
Magnet type: alnico 5 bar, D.C. Resistance 16.4k
 
Re: SH-4 DCR measurement no where near what is listed.

One other thing, Duncan doesn't necessarily print the exact spec. Look at the DCR for the Custom Custom (14.4k), and the Custom (14.1k). Yet we know they're made from the same coils.

So if there is only a 300 ohms difference between the Custom Custom and the Custom why not call them both Customs? Wouldn't they be "range" of each other. 300Ω is closer than 1kΩ.
 
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Re: SH-4 DCR measurement no where near what is listed.

So if there is only a 300 ohms difference between the Custom Custom and the Custom why not call them both Customs? 300Ω is closer than 1kΩ

Different magnets, different personality's. The Custom Custom, Custom 5 and Duncan Custom are all the same coils, but with different mags.

P.S. There isn't 300 ohms difference. That's just what they publish. That's my point. ;)
 
Re: SH-4 DCR measurement no where near what is listed.

Different magnets, different personality's. The Custom Custom, Custom 5 and Duncan Custom are all the same coils, but with different mags.

P.S. There isn't 300 ohms difference. That's just what they publish. That's my point. ;)

Lets go with the bridge SH-1 (8.13kΩ) and bridge SH-2(7.9kΩ) with the same magnet look at the range in that and look how little difference between the two are. Now look at how the tonal EQ changed. So with everyone saying that a 17.5 is within range. IF I purchase a SH-2 and it reads 8.14 is that a SH-1 or a SH-2? It's "in range", but I purchased a SH-2 not a SH-1 (which is untrue as I own both ;) ). With that "little" difference why not sell them both as SH-1's? With such a small margin why have two different models?

I understand that's what they publish as temperature change so does the DCR, but not huge of a jump.
 
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Re: SH-4 DCR measurement no where near what is listed.

I'm not sure if you are aware that wire gauge and winding patterns contribute to tone as much as DCR...
 
Re: SH-4 DCR measurement no where near what is listed.

I'm not sure if you are aware that wire gauge and winding patterns contribute to tone as much as DCR...

Yes I understand that.. You have loose scatter, tight scatter, loos machine, and tight machine..

I'm going out on a limb and say that SH-1 and SH-2 use 42AWG PE.. I could be wrong... I'm also going say there 17.5 and 16.5 are going have a different tone as well. Just like a 7.9 and 8.31 will have a different tone characteristics.
 
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Re: SH-4 DCR measurement no where near what is listed.

I've had a JB read at right at 18k.

Nothing to sweat. Everyone keep their panties on.


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Re: SH-4 DCR measurement no where near what is listed.

IF I purchase a SH-2 and it reads 8.14 is that a SH-1 or a SH-2? It's "in range", but I purchased a SH-2 not a SH-1 (which is untrue as I own both ;) ). With that "little" difference why not sell them both as SH-1's? With such a small margin why have two different models?

There is more to a pup than DC resistance. Just because two pups may read the same resistance does not mean that they are the same pup model. Otherwise all of these would be the same pup (with factoring in a 5% tolerance):
SH-1b,
Sh-2n,
SH-2b,
SHPG-1b,
SH-55b,
APH-1b,
APH-2n,
APH-2b,
SH-18n,
Sentient,
And probably many others, especially when you include other manufacturers.

Pretty silly reasoning, right?
 
Re: SH-4 DCR measurement no where near what is listed.

There is more to a pup than DC resistance. Just because two pups may read the same resistance does not mean that they are the same pup model. Otherwise all of these would be the same pup (with factoring in a 5% tolerance):
SH-1b,
Sh-2n,
SH-2b,
SHPG-1b,
SH-55b,
APH-1b,
APH-2n,
APH-2b,
SH-18n,
Sentient,
And probably many others, especially when you include other manufacturers.

Pretty silly reasoning, right?

What's the difference between the SH-1 and SH-2? Both have the A5 bar magnet.

If you think that DCR isn't part of the selling point then you would be mistaken. Go to other pickup winders such as Throbak.. and check their pickups description out. They all have the DCR in the description. Somebody orders a 8.6k from ThroBak that's what they are going to get they aren't going get a 9.7k from them. I'm going say the same thing from Lollar if you order a pickup it's going be what you order it's not going to be 1k more.

When I took the measurement it was a 83° F.. I stuck it in the fridge and I'm going see what I get.
 
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Re: SH-4 DCR measurement no where near what is listed.

Did you try the pickup and decide it was way too hot or something and check? Or has it not been played with yet? I wouldn't be too concerned with the dc resistance unless the sound is giving you is causing you great concern. If it sounds right, it is. The JB uses a thinner wire than the sh-1,2 and 57 classic. Usually pickups with thinner wire and more windings are harder to precisely wind, and each winding makes less of a difference than with a thicker wire.
 
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Re: SH-4 DCR measurement no where near what is listed.

What's the difference between the SH-1 and SH-2? Both have the A5 bar magnet.

If you think that DCR isn't part of the selling point then you would be mistaken. Go to other pickup winders such as Throbak.. and check their pickups description out. They all have the DCR in the description. Somebody orders a 8.6k from ThroBak that's what they are going to get they aren't going get a 9.7k from them. I'm going say the same thing from Lollar if you order a pickup it's going be what you order it's not going to be 1k more.

Sh-2 has a thinner wire I believe. I also think a different wind pattern but I'm not too sure.
 
Re: SH-4 DCR measurement no where near what is listed.

What's the difference between the SH-1 and SH-2? Both have the A5 bar magnet.

If you think that DCR isn't part of the selling point then you would be mistaken. Go to other pickup winders such as Throbak.. and check their pickups description out. They all have the DCR in the description. Somebody orders a 8.6k from ThroBak that's what they are going to get they aren't going get a 9.7k from them. I'm going say the same thing from Lollar if you order a pickup it's going be what you order it's not going to be 1k more.

When I took the measurement it was a 83° F.. I stuck it in the fridge and I'm going see what I get.

Because years ago one large manufacturer was using DCR as output and lots of other manufacturers followed suit. Wrong then, wrong now.
 
Re: SH-4 DCR measurement no where near what is listed.

I understand DCR changes with temperature and other factors, but it's not close. I used my Fluke 189 which is calibrated yearly. I also used my 20 year old Craftsman. Website chart states it should be 16.4kΩ I'm reading 17.5kΩ.... Fluke leads are .0 and the Craftsman are 1.0Ω.. Even with those factored. FWIW I have another pickup from another manufacture that's also the same out. I also tested my SH-1, SH-2, Gibson 57, and a few others and they are measuring what is called out.

WP_20140824_18_09_02_Pro.jpg


WP_20140824_18_12_08_Pro.jpg
Take multiple readings with your tester & compare when the probe is measuring the ground from the green & bare wire then compare the reading with it using the leg of the baseplate as the ground .
see what you come up with
 
Re: SH-4 DCR measurement no where near what is listed.

What's the difference between the SH-1 and SH-2? Both have the A5 bar magnet.

If you think that DCR isn't part of the selling point then you would be mistaken. Go to other pickup winders such as Throbak.. and check their pickups description out. They all have the DCR in the description. Somebody orders a 8.6k from ThroBak that's what they are going to get they aren't going get a 9.7k from them. I'm going say the same thing from Lollar if you order a pickup it's going be what you order it's not going to be 1k more.

When I took the measurement it was a 83° F.. I stuck it in the fridge and I'm going see what I get.
Do your homework ......
59 or sh1 is wound on the lessona as a Paf type & uses Plain enamel wire .
the Jazz is a more Modern pickup that uses poly wire .
Look in the hole in the bobbin .
 
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