<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">Am 08.09.2022 um 20:48 schrieb <a href="mailto:rburnett@richieburnett.co.uk" class="">rburnett@richieburnett.co.uk</a>:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">You want to keep the field lines confined to a small air gap. Something like a MnZn ferrite toroid with a piece cut out might work well with the magnetic string placed in the air gap.</span></div></blockquote></div><br class=""><div class="">Not sure if I understand this right…</div><div class="">A string usually is not magnetised. Close to one pole of a magnet it will be pulled towards that pole, no matter if it’s a north or south pole. In the middle between the two poles it won’t be pulled anywhere at all.</div><div class=""><br class=""></div><div class="">On the other hand, if the string is placed in front of both poles of a horseshoe magnet (as with a humbucker pickup) it will be pulled towards the poles.</div><div class=""><br class=""></div><div class="">Ingo</div></body></html>