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Pickups & wiring Discussion about pickup types, replacements, recomendations, switching, wiring diagrams and sustainer systems for ANY guitar, JEMs included.

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  #1  
Old 03-29-2003, 02:08 PM
stephan.keuneke  is offline
 
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polepieces on middle PU on a Jem7


Hi there,

just got my Jem7VWH and are absolutely happy with it. One thing that I noticed and wonder about: the polepieces of the single-coil PU in the middle are sticking out differently (especially the one under the G-string is sticking out much further) and I suppose they can't be adjusted.

Do they somehow calibrate the polepieces/PU's at the factory for each guitar or does DiMarzio just make 'em all like that? Does your 'G-polepiece' of the single-coil on your Jem7VHW stick out further than the others.

Just curious..
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  #2  
Old 03-29-2003, 02:10 PM
darren wilson  is offline
 
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Since the early days of the Stratocaster, Fender single-coil pickups have had staggered pole pieces. They're just designed that way. The original intent was to help balance the output from each string.
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Old 03-29-2003, 02:20 PM
stephan.keuneke  is offline
 
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... so you're saying that all the Jem7-S-PU's should have the same 'sticking out G-polepiece'?
If it's about adjusting output, I'd think that from highest to lowest they would be further from the strings as the thicker ones have more mass moving and thus would create more induction.
But that's not what it looks like ...
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Old 03-29-2003, 02:25 PM
Rich  is offline
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Your D pole doesn't stick out just as far?
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Old 03-29-2003, 02:31 PM
stephan.keuneke  is offline
 
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... nope, going from 'furthest out' to 'least out' on mine it would go:
G, E(high), H, E,A,D

anyone there with a Jem7VWH to compare?
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Old 03-29-2003, 02:45 PM
Rich  is offline
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Hmmm HEAD

The E,A,B, and E should all be the same, the D and G are just a little higher but both the same.
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Old 03-29-2003, 02:55 PM
stephan.keuneke  is offline
 
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... sorry for the german 'H' for 'B', but then 'head' reads well, doesn't it? Anyway, the 'D' polepiece on mine is definetely the lowest of all 6. Wich brings me back to the original question: does anyone at Ibanez treat the polepieces at all, or are they as they are, coming from DiMarzio?
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  #8  
Old 03-29-2003, 03:01 PM
Rich  is offline
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Nobody adjusts them, they aren't adjustable [but you could probably push the high ones back down]
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  #9  
Old 03-29-2003, 03:19 PM
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kennydoe  is offline
 
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The ones on my strat were indeed adjustable with a little bit of pressure from the top or bottom.

Better yet, I highly recommend throwing the Jem's sigle in the garbage and replacing it with a better sounding/higher output model. Honestly, it's trash can food.

~K
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Old 03-30-2003, 10:35 PM
Drew  is offline
 
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The reason the G is higher than the rest is actually pretty ridiculous.

Back when the Stratocaster pickups were designed, it was common to (a la an acoustic string set) use a wound G string. Now, because the winding on the string isn't as readily picked up by the magnet as the core, the G string wasn't as loud as the surrounding strings. Thus, to compensate, the polepeice was moved closer to the string to give a louder note, providing better balance.

Flash forward 10 years. It's now the late 60's, and "rock" music has come into its own. To facilitate string bending, many players have dropped wound G strings for lighter, unwound G's. However, due to the fact that it's unwound, the G string actually is "larger" than the core of the wound string, and is suddenly the loudest string on the neck of the guitar. Good thing the polepeices on everyone's Les Pauls are adjustable.

Fast forward 40 years. It's the late 90's/early 00's, and vintage tone freaks everywhere want exact replications of the early stratocasters, including the offset polepeices, which were initially offset to compensate for a string standard that was abandoned nearly 50 years ago.

And Fender snobs call US stupid.

Personally, I arc my polepeices to approximately match the fretboard radius. Why? Because i tried it, and I liked how it sounded. It's not "better" than any other answer, but I'd like to think it's a little less arbitrary than the way most singlecoils are set. You may not like this configuration- this is why I prefer pickups with adjustable polepeices, because if you don't like how a specific arrangement sounds, just take out your screwdriver or allen wrench and you've got a new one.

And it really does make a difference- i was floored how much more "warmer" and "resonant" it sounded when i hit the first chord after making the tweak.

-Drew
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  #11  
Old 03-31-2003, 01:50 PM
Joost  is offline
 
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Hi Stephan, congrats on the VWH, i just bought a 777VBK
and my single pickup has the config Rich descripes :

http://jemsite.insomnia-vhosting.com...ngle%20web.jpg

Quote:
Originally Posted by Rich
Hmmm HEAD

The E,A,B, and E should all be the same, the D and G are just a little higher but both the same.
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Tags
allen wrench, coil pickup, fretboard radius, les paul, les pauls


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