Somebody who apparently knows a lot about pickups said " Formvar insulated magnet wire is golden in color and plain enamel has a brown/purplish color. Both were used in pickup manufacture during the '50's and '60's. Presently most pickups are manufactured using plain enamel or polyurethane (reddish color). There is no difference sonically among the three"
Is this true? I believes insulation had a real effect on the final sound of a pickup.....
