P90 magnets asembly

[LtKojak]

It seems Gibson used what ever they could get at the time. There was no design consideration put into choosing a magnet.

If it said Alnico in the invoice and it was the cheapest they could get, that's what they used.

[gripweed]

Well that's what I'm asking. Non oriented A5 is weaker, similar to A2. But how can one tell by looking at them? You really can't.

It seems Gibson used what ever they could get at the time. There was no design consideration put into choosing a magnet.

What exactly does the "Non Oriented" stand for when it comes to magnets? It would seem to me that it would have no North or South, but that doesn't make much sense.

[big_teee]

What exactly does the "Non Oriented" stand for when it comes to magnets? It would seem to me that it would have no North or South, but that doesn't make much sense.

I Copied this from a magnet site.
B_T

Oriented (anisotropic): has better magnetic properties in a given direction. During the manufacturing process, a magnetic field is applied in the direction of preferred magnetization to orient the material and increase the magnet's performance potential. With oriented material, multiple pole magnetization flux goes "through" the magnet making both sides of the magnet strong.

Non-oriented (isotropic): Has equal magnetic properties in all directions. During the manufacturing process the magnet is not exposed to a magnetic field. This material can be magnetized in any magnetization pattern. This material is weaker than oriented materials. With non-oriented material, multiple pole magnetization flux bends inside the magnet making it strong on one side only.