Aporte original por: Ben ,
Insulated enamel wire requires pre-tinning as you need to scratch off the enamel coating which is non-conductive. In a pinch you can use for example the copper / magnesium wire from a earpiece speaker if you wanted. Doesn’t have to be the same size of the pad it could be smaller or half the size. Larger jumper wires are only required for high power circuit traces / connections.