Ultraperm sheet for sale

[Stealth]

Hmmm. The material would make for an interesting way to really thin out a pickup aperture - or widen it, depending on the material's orientation. I'm no magnet expert (duh...) but given how magnetic flux lines are oriented from a standard (say PAF) humbucker, this could very well lead to interested effect if you were to "pincer" the pickup aperture to a much narrower.

...am I thinking too much in advance if I'm thinking "somebody ought to make a toaster cover out of this"?

[Joe Gwinn]

Hmmm. The material would make for an interesting way to really thin out a pickup aperture - or widen it, depending on the material's orientation. I'm no magnet expert (duh...) but given how magnetic flux lines are oriented from a standard (say PAF) humbucker, this could very well lead to interested effect if you were to "pincer" the pickup aperture to a much narrower.

I don't know that a sheet of ultraperm would work any better than a sheet of silicon steel in terms of aperture, but some quality time in the lab will tell. One thing to be aware of is that ultraperm has a very high permeability, and so is easily saturated. Be stingy with the magnets.