|
A guitar pick up would be a good place to start. A tape head will only pick up magnetic field variations verry near the gap. The problem with magnetic material in the middle of the windings is that you have hysterisis and saturation to deal with. This can get a bit tricky to get what you are after.
An air core might be the best for your needs. A short piece of 4 inch (10cm) ABS pipe with a couple thousand turns of magnet wire may work well. You will need to check the overall inductance and resistance of the pick up to determine how much high end you will get.
-tINY
|