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Thread: JB and Distortion - winds

  1. #1
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    Default JB and Distortion - winds

    Hi! Do Jb and Distortion has the same winds/coils or different?
    I bought Duncan JB without sticker and I think it id Distortion or moded JB, because has double thick ceramic magnet. If I share photos, you can identify it?
    Last edited by CarlosG; 11-17-2019 at 11:54 PM.

  2. #2
    Toneologist Discharged's Avatar
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    Default Re: Ja and Distortion - winds

    Not need to. The presence of ceramic magnets indicate a Duncan Distortion.

    And no, the DD and JB winds are not the same, although they're so close that only your dog might hear the difference, once you change the present magnets with a single A5.

    /Peter
    Last edited by Discharged; 11-18-2019 at 12:42 AM.
    Peter Pedersen aka Discharged
    Kolding, Denmark

  3. #3
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    Default Re: Ja and Distortion - winds

    I bought this pickup on second hand, so I want to know how model it is for sure. Do jb and dd have any characteristic features?

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    Default Re: Ja and Distortion - winds

    Quote Originally Posted by CarlosG View Post
    I bought this pickup on second hand, so I want to know how model it is for sure. Do jb and dd have any characteristic features?
    JB will say SH4 or TB4. Distortion will say SH6 or TB6. The magnet of the Distortion is thick, I'd guess 5mm versus 2.5 of the regular magnet (ballpark estimate).

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    my banana hammock hosts a leetle peppercini and has hit the skids Aceman's Avatar
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    Default Re: Ja and Distortion - winds

    In before the lock!
    Quote Originally Posted by Bad City
    He's got the crowd on his side and the blue jean lights in his eyes...

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    OH THE GLAZE! Clint 55's Avatar
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    Default Re: Ja and Distortion - winds

    Quote Originally Posted by orpheo View Post
    The distortion-A5 had a slightly different upper mid spike compared to the JB: still a bit more buzz-sawy than the JB, which is a bit more fluid.
    Correct. There's no such thing as 2 pickups which are the same but somehow have some completely different characteristics.
    Keemsta meha
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    Toneologist Discharged's Avatar
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    Default Re: Ja and Distortion - winds

    Quote Originally Posted by orpheo View Post
    @Discharged: actually... when I swapped the ceramic for an A5 I did hear a difference. The basic DNA was there, for sure, but the tonal differences were present. The distortion-A5 had a slightly different upper mid spike compared to the JB: still a bit more buzz-sawy than the JB, which is a bit more fluid.
    After making the swap, it was by no means apparent to me at all, so if I have to put a finger on it, I blame the way the rig the guitar was put through was setup.

    That's all I can say, as the tone the guy chose to play, which for me was like a swarm of very angry wasps, didn't really make it easy to test.

    All I know is, he liked what he heard after the swap, I got paid, so it was a win/win situation for me, specially being kinda opposite of my average kind of customer, and I couldn't get out fast enough... gett off my lawn, kids!!! Man, I'm ooooooold...!!!

    /Peter
    Last edited by Discharged; 11-18-2019 at 06:53 AM.
    Peter Pedersen aka Discharged
    Kolding, Denmark

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    Default Re: Ja and Distortion - winds

    Quote Originally Posted by Aceman View Post
    In before the lock!
    Actually, I locked the other thread because I tried to get it back to your question, and I was ignored.
    My thought about this topic is
    1. I don't now the answer
    2. I don't care

    Both are pickups I would literally never use. But I get that people without any knowledge might have fun speculating. Hopefully the end result is better music made in the end.
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    Tone Member shadowfire90's Avatar
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    Default Re: Ja and Distortion - winds

    Using inductance it's quite easy to spot the difference. Inductance is not on most peoples multimeters. The multimeter I recommend for people without spending 100s of dollars is a Mastech MS8269 or similar. You can get one on amazon for around 20-40$ American.

    As most know DC resistance can go up or down depending on the temperature of the area you test in. H as in Henries is our unit. Megahenries are not as strong. I did a post yesterday comparing megahenries to megabytes versus Henries that are like gigabytes. Both are actual measurements. Round them to a solid number. I have a ton of name brand pickups measured like this and written down for those interested. The difference of 1 Henry of inductance is a much bigger than 1k of resistance. The usual range is 3-10H on average for passive humbuckers.

    both of these were pickups I had in builds.

    SH-4 - JB
    15.98 k DC resistance
    8.58H Inductance

    SH-6 - Distortion
    16.58k - DC resistance
    7.5H - inductance

    this is the multimeter I recommend for those who don't have one and again don't want to spend 100s of dollars. In real world situations there is a few other uses a guitar tech could use for this such as measuring capacitors that the letters are gone off them and testing wiring using inductance reassures us if a pickup is series out of phase.
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    Last edited by shadowfire90; 11-18-2019 at 10:22 AM.

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    Default Re: Ja and Distortion - winds

    DC Resistance:
    Series: 17,67k
    Parallel: 4,42k
    North coil: 8,84k
    South coil:8,87k
    I done a few photos this pickup. I raised cloth cover and except double thick ceramic magnet, has two double thick plastic spacers.
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  11. #11
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    Default Re: Ja and Distortion - winds

    Quote Originally Posted by shadowfire90 View Post
    SH-4 - JB
    15.98 k DC resistance
    8.58H Inductance

    SH-6 - Distortion
    16.58k - DC resistance
    7.5H - inductance
    They sound completely different, their unique winds cause the JB to be 1 Henry hotter but they're the same. LOL
    Keemsta meha
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    Default Re: Ja and Distortion - winds

    Quote Originally Posted by shadowfire90 View Post
    Using inductance it's quite easy to spot the difference.

    SH-4 - JB
    15.98 k DC resistance
    8.58H Inductance

    SH-6 - Distortion
    16.58k - DC resistance
    7.5H - inductance
    Great! Now change the magnet on the DD and put a single A5, THEN measure the inductance again. My take is, that 1 Henry difference will disappear and read just about the stock JB.

    Well...?

    /Peter
    Peter Pedersen aka Discharged
    Kolding, Denmark

  13. #13
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    Default Re: Ja and Distortion - winds

    ^ Putting a weaker mag in the DD would cause its inductance to go up?
    Last edited by Clint 55; 11-18-2019 at 02:16 PM.
    Keemsta meha
    Ham hit a dog!!

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    Default Re: Ja and Distortion - winds

    Yes. It’s the metallurgy.

  15. #15
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    Default Re: Ja and Distortion - winds

    So the output would go down while the inductance would go up? I thought inductance was an accurate representation of output?
    Keemsta meha
    Ham hit a dog!!

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    Mojo's Minions beaubrummels's Avatar
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    Default Re: Ja and Distortion - winds

    In my experience, actual output is the only accurate measure of actual output. Everything else is just ingredients in the recipe. You can’t judge a pizza just by the flour alone.
    Quote Originally Posted by Demanic
    Incompetence is widespread in a world that rewards mediocrity while punishing excellence.
    Quote Originally Posted by GuitarFanatic
    I am currently using Skullcandy headphones I found in the garbage.
    I did find the DS-1 in the garbage.
    I once found a guitar amp in the garbage, a Peavey Studio 110. It caught fire at the first gig I played it at.. But it was at the end of it, thank god.

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    PenultimateTone Member Demanic's Avatar
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    Default Re: Ja and Distortion - winds

    It's like comparing grain alcohol with aged scotch.

  18. #18
    Tone Member shadowfire90's Avatar
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    Default Re: Ja and Distortion - winds

    I actually did try this out today on a cheap test pickup. I never would have thought that there was no connection between inductance and resistance. Times lke this I'm glad I joined the forum. Oddly enough I had an alnico 5 magnet I took out of a guitar pickup a few days ago to try this and it's true.

    I'd say stick with ceramic. Luckily it's not priced similarly to gold. It'll be a fun project. The only alnico I'd let near a SH-6 or JB is alnico 8 as it's stronger than 5. Or just go with neodymium for heavier tones. To each their own. Everything is done for a reason in those pickups.For all we know it could be a different diameter of wire used to wind the pickup to get a similar resistance but different inductance or a different technique or alloy for the pole pieces to give it, This is all speculation but hey Winter Namm is just around the corner. I wonder what would convince Seymour to tell those interested if he goes this year.

    either way without unwrapping the pickup the fastest or easiest way to figure out which pickup it is assuming it's never been modified I'd say is doing inductance. I had this older Bill Lawrence pickup and without inductance I would have had no idea which mode lI had as it came out of a late 80s to early 90s Washburn guitar.
    Last edited by shadowfire90; 11-18-2019 at 10:33 PM.

  19. #19
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    Default Re: Ja and Distortion - winds

    So you CAN NOT hear the difference.

  20. #20
    Mojo's Minions beaubrummels's Avatar
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    Default Re: Ja and Distortion - winds

    For the record, I have 2 stock JBs from different time periods and they sound noticeably different from each other. So unless you have a DD and a JB from the same winder and same date, not sure how well you can get an apples to apples comparison.
    Quote Originally Posted by Demanic
    Incompetence is widespread in a world that rewards mediocrity while punishing excellence.
    Quote Originally Posted by GuitarFanatic
    I am currently using Skullcandy headphones I found in the garbage.
    I did find the DS-1 in the garbage.
    I once found a guitar amp in the garbage, a Peavey Studio 110. It caught fire at the first gig I played it at.. But it was at the end of it, thank god.

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