Vintage Guitar - June 2018 - open - 85
tonal) characteristics. They're made to exact sizes, so no bar magnet
is needed. I chose six Alnico III poles measuring .185" in diameter,
and to keep them from shifting, I use a drop of cyanoacrylate glue.
They can be arranged in a flat configuration, or their relative heights
can be staggered to emphasize particular strings.
4) One of the quickest ways to change the sound is to double-stack
the bar magnets on the bottom of the pickup. Bar magnets removed
during the Alnico conversions can be re-used by simply stacking
them on top of the pickup's existing magnets with proper polarity.
Opposite poles attract while similar poles repel, so the magnet will
orient itself. A dab of epoxy will secure the assembly and prevent
slippage or vibration-induced feedback.
5) With the magnet removed from the pickup form, you'll have
six steel slugs, which are excellent conductors for the electrical fields
generated by the magnets. Here's where neodymium magnets are an
interesting option. Vintage-style pickups use Alnico for pole pieces,