magnetic contact

magnetic contact

a simple small holder for a magnet (Ø6 x 4mm).
solder the cable to the magnet with some soldering grease. lead the cable through the hole and press the magnet in.

please note: when soldering the wire, the magnet must not become too warm, otherwise it will demagnetize.
first put a small drop of solder with soldering grease on the magnet - let it cool down - and then solder the wire. the best way is to position the magnet on a metal sheet or another magnet.
another possibility, as a commentator recommends: do not solder to the magnet but to a small disc or ring - see picture.
because of a possible disc, the cable routing was modified.