Why don't any pickups use Alnico 1??

Discussion in 'Just Pickups' started by xitongzou, Sep 14, 2021.

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  1. xitongzou

    xitongzou TDPRI Member

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    Seriously, you hear about Alnico 2, 3, 4, 5 but never 1? Is there something about Alnico 1 that makes it unsuitable for guitar pickups?
     
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  2. BB

    BB Poster Extraordinaire

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    Leo, Seth and Ray all said no to 1. So that's just the way it is!
     
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  3. ahiddentableau

    ahiddentableau Tele-Meister

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    I'm not sure there is such a thing as an alnico 1 magnet. At least I've never seen one in any of the listings or lists of magnet types that I've seen. I would be interested to know one way or the other from somebody with more knowledge/experience.
     
  4. Dacious

    Dacious Doctor of Teleocity

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    It got spoiled being the first and too big a head?
    :confused:
     
  5. archetype

    archetype Fiend of Leo's Ad Free Member

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    Alnico 1 mags are manufactured, but my guess is that the gauss they can achieve may be too low to have a practical application in passive pickups. There's a physical relationship between the magnetic charge and the distance to string. You want some space there for strings when you really whack them
     
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  6. dogmeat

    dogmeat Friend of Leo's

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    I want the ALNICO 11s
     
    Last edited: Sep 15, 2021
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  7. telemnemonics

    telemnemonics Telefied Ad Free Member

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  8. tubedude

    tubedude Tele-Meister

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    It's a failed prototype, like Heinz 1 through 56.
     
  9. chezdeluxe

    chezdeluxe Poster Extraordinaire

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    The pickups on my Yamaha SA 2000S from 1982 are supposed to be Alnico I and were only in that model. I love them. There is some differing information as to whether they are in fact Yamaha “Spinex” pickups where the magnets are a proprietary alloy.

    They certainly sound different from the pickups in my similar vintage SA 1000 which are supposedly Alnico II
     
    Last edited: Sep 15, 2021
  10. Willie Johnson

    Willie Johnson Tele-Afflicted

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    Or how you don't call it "Breakin' One" to distinguish it from "Breakin' Two: Electric Boogaloo".
     
  11. Bryan A

    Bryan A Tele-Meister

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    Same reason there’s no 6 Minute Abs.
     
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  12. Killing Floor

    Killing Floor Friend of Leo's

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    I heard they stabbed a guy.
     
  13. Willie Johnson

    Willie Johnson Tele-Afflicted

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  14. Antigua Tele

    Antigua Tele Friend of Leo's

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    This is an interesting read about AlNiCo magnets https://www.gitec-forum-eng.de/wp-content/uploads/2019/02/poteg-4-4-1-alnico-magnets.pdf it says that AlNiCo I is very similar to AlNiCo III, but more practical when the AlNiCo has to be larger, and in industrial application, AlNiCo magnets are generally a lot larger than pole pieces and PAF bar magnets. It looks like it would be a cross between AlNiCo 2 and 3, and is more susceptible to losing it's magnetic charge than either 2 or 3.

    An interesting thing about AlNiCo and pickups is that AlNiCo has to be long. You can have a button shaped ceramic or neo magnetic, but AlNiCo has to be a "pole piece" or a "bar", which is why you never see, or saw AlNiCo refrigerator magnets. So the design of guitar pickups had to take into account the fact that AlNiCo is relatively big and long. Neodymium and ceramic permits new pickups to be invented where in the magnet requires almost no space in the housing, but the only one I've seen on the market is the Nanomag for acoustic guitars, likely a low impedance coil wrapped around a ceramic bar: https://shadowelectronics.com/products/shadow-nanomag-pickup
     
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  15. uriah1

    uriah1 Telefied Gold Supporter

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