Guitar Pickup

SKU: 44702

$10.95USD or lower Each

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Use a genuine Cochranes of Oxford Magnaprobe™ Mark II to correctly align your alnico magnet guitar pickups. They work great no matter whether you're using AlNiCo grade 2,3,4,5,8 or 9 or even ceramic rod magnets.

Bought Alnico 5 single coil pickups online because they were cheaper but don't seem to meet spec? The magnets could be mismatched or simply poor quality. A Genuine Magnaprobe™ might help you troubleshoot the problem. This is especially true if you are experimenting with what you think are very strong Neodymium Rare Earth N52 grade magnets.

Genuine UK made Magnaprobes™ are sturdy, non-contact, analog devices for demonstrating the 3D nature of magnetic fields. Beware cheap copies which will fail if you try this more than once.

Details

The Magnaprobe is a fascinating way to demonstrate the three dimensional nature of magnetic fields. It consists of a small alnico bar magnet that is gimbal mounted so that it will freely rotate to map out x, y and z coordinates as you move it around a magnetic source.

Note: Avoid contacting other magnets. If you do so by accident, detach the Magnaprobe by holding its magnet. Do not simply pull back with the handle as you may ruin the device.

Another neat application is how we used a Mark II Magnaprobe to detect eddy currents in this blog: Eddy Current Copper Tube Drop Tower Brake Test.

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Specifications

Because of the many cheap copies of the Cochranes of Oxford Magnaprobe MarkII, specifications are propriety. Performance is determined by the grade of AlNiCo used in the magnet, its size & the precision of its dimensions. Further, the type of plastic & its precision of manufacture greatly impact its long term reliability.

We can say, however, that the AlNiCo bar magnet is a high grade making it very sensitive & is gimbel mounted. The handle is 3.25mm thick & virtually indestructible. You get what you pay for!

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