Older changeout of a failed capacitor on an airconditioner. Connection on the capacitor was arcing and making a noise, so replaced with another capacitor, and replaced the connection using a piece of old wiring loom, removing the need for the capacitor terminal needing to join multiple wires.
While there I replaced the power switch, as it was arcing on turn on as well, and I had a spare one. The contacts on the one side were a little burnt, and i tested out using my cellphone with the objective out of an old photocopier as a quick and nasty macro lens. Works, but I need a bigger lens, and will try the next time with one.