Re: PICK UPS


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Posted by John Spurrier on January 13, 2001 at 23:30:50:

In Reply to: PICK UPS posted by sassy on January 11, 2001 at 08:43:10:

: COULD SOMEONE EXPLAIN TO ME MORE ABOUT PICKUPS PLEASE?:)

Sassy,
Both the other explanations you got are good. I wanted to add a little techicnal stuff. If you have a wire and a magnet and you move one near the other the movement induces (or creates) a tiny voltage in the wire. In the case of a bass pickup there is a magnet wrapped a in a coil (or two) of thin copper wire. The bass string which is made of a magnetic material (steel) becomes part of the magnetic field created by the magnet in the pickup. When you pick the string it vibrates and causes the magnetic field to vary at the frequency of the strings vibration. Back to the 1st statment, we now have a varying or moving magnetic field with a coil of copper wire in the middle of it. The varying field induces or creates a voltage in the coil of wire. It's proportional, the more turns in the coil the larger signal it creates. Which is why humbuckers produce a bigger signal, there's two coils in each pickup.
Hope this helps.
John Spurrier




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