Circuitry

At the other end of the day I settle down to pure pottering. I wanted to connect some extra speakers to the little ones that came with a computer. I didn't want to ruin the speakers for use elsewhere, so I scavenged some jack sockets from an old sound board and added a little jack socket in the side of each speaker connected up to the speaker wires inside the box. The 7mm hole required to poke the sockets through was a perfect fit and the things seemed to almost snap into place, but I daubed a glob of hot glue on them inside just to make sure. Then I cut the jack plugs off of a couple of old headphone sets and connected them up to the larger speakers. Seems to work OK.