Quantity   Component name
1 × 1N5819 Schottky Diode e.g. Mouser 621-1N5819HW-F https://www.mouser.sg/ProductDetail/Diodes-Incorporated/1N5819HW-7-F?qs=sGAEpiMZZMuHSyTciuLGfz7QlcwO2TN6
1 × white LED 0805 e.g. Mouser 630-HSMW-C170-U0000 https://www.mouser.com/ProductDetail/Broadcom-Avago/HSMW-C170-U0000?qs=sGAEpiMZZMseGfSY3csMkUxhMwy8qEyRYICFXW4fSeAq4RjjHoIC9A%3d%3d
1 × 10µF electrolytic capacitor e.g. Mouser 661-EKXF251ELL100MJC https://www.mouser.com/ProductDetail/United-Chemi-Con/EKXF251ELL100MJC5S?qs=sGAEpiMZZMsh%252b1woXyUXj1Qqd7OcgYbMwyirPCNM5Cg%3d
1 × AAA battery
8 × neodymium magnets formulation not particularly critical - should be strong, not necessarily the strongest
1 × copper wire for coil e.g AWG24, approx 60cm
1 × fine gauge hookup/magnet wire to tap the bottom of the coil to the diode. Diameter 0.1mm, approx 10cm