Longboard LM3886 68W gainclone amplifier

As I have a ±12V battery supply on my motorized longboard anyway it was an easy addition to add a 2x68W gainclone amplifier on there as well.

(Also works to explain to the police that there isn’t a motor under there, but in fact a dynamo to charge the batteries for the amplifier when you’re longboarding to your weekly park chill.)