What's the oldest piece of tech you still have running?

The oldest thing that runs on electricity in my house is probably a tie between my washer and dryer. Both are Kenmore 80 series from the early 90's. I've repaired them a number of times and will continue to do so.

I also have a late 90's vintage Magnavox tube TV which is in working if slightly twitchy order. I set it up every now and again to play SNES games on. The picture's gone slightly orange and depending on what's being displayed there's a notable coil whine, I'm sure it needs to be recapped.

I still have my original SNES, it doesn't work and I'm not sure why. One of its controllers and all but one of my old cartridges is still working. It's not going to be long I'm going to have to change the batteries in the games. Weird to think my copy of Link to the Past has had RAM turned on and running for 33 years straight.

I've still got my RioVolt mp3 CD player. The in-line remote died but the machine itself works fine. I've had it since 2001. I'm very fond of it.

As far as computers, I still have my high school HP Pavilion desktop, and it does still barely boot to XP, but I don't use it for anything. I have a Dell Dimension with an old 3-digit Core i7 circa 2009 that does still see some use as it's supported by modern Linux and yet it's got old shit like a PCI slot, optical drives, firewire, extrenal SATA, so it's a useful tool to have around if I have to play with Dubya-era electronics.