This switch has been on my desk for some time and always mostly worked. I like the origin of all the components, the DPDT toggle switch was from a scrap pile I found outside an EE lab at school. I have no idea how old it is, but it certianly seems older than me. It's actually rated for 250v 3A so you can connect it to the mains and switch on and off most appliances like a lamp without worry. The headphone connectors were from an ISA sound card, in the world of obsolete computer technology that puts it at pre 1996.
I used to have it all wired together but I am pleased to have found a way to connect it all together directly to the tabs. If I had a way to safely solder thick ~3mm solid core copper I would have made a nice bracket to join all the ground channels together.
Anyways my rebuilt input switcher. One side for computer and other side for music player all output to my speaker in the middle. It's much stronger than before and the connections are solid so no more crackle but I wish I was able to connect it all with thick copper wire to reinforce everything.
