Asklemmy

This is why we have specialized people who you call to handle these things.

DO NOT backfeed your house's electricity with a generator when your electricity gets shut down. You might electrocute someone working on those lines.

Microwave

Old CRT monitors. Particularly if they've been recently unplugged. There's a cable in there my old teacher used to call "the superman cable".

Ok firstly.

Never, work on anything that is still connected to a power supply.

This includes any stored energy. Isolate it first. Gravitational, electrical, pneumatic, hydraulic and chemical (if possible).

Don't fuck with stored energy.

Secondly.

Learn how to test if things are live, or have any stored energy.

Thirdly.

Once you KNOW you are safe. Go hard, learn all you can.

You can harvest the transformers for a couple junk microwaves to make an arc welder.

If you aren't experienced then pretty much all power supplies, battery backups, and motors should be left to someone else.

I saw someone lose a finger (later reattached) to a washing machine with a jammed tub. It was plugged in and on when they reached underneath it and yanked the belt, their sleeve ducked their hand into the drive wheel.

That said, if it fits your personality it can be both fun and satisfying to learn how to fix stuff. I try to teach anyone who's interested and asks. Except LG washing machines, those things can fuck right off.

CRT TVs.

Desktop computer power supplies. Don't open them.

Air conditioner. I melted a screwdriver.

• Laser / LED printers can blind you and may have larger capacitors.
• Old CRT style TVs / Monitors can get you if not discharged correctly.

kids today don't know about the scary suction cup on crts

Anything with large capacitors?

This very much depends on your level of skill, experience and awareness of the dunning-kruger effect.

This whole thread is making me anxious

If you're gonna take a washing machine apart and you cut all the wires, make sure you cut the main electrical plug off as well or your dumbass son (me) will plug it in and electrocute himself with it.

I'll expand the microwave to anything that can carry a large electrical charge without you really knowing. I had a UPC that started acting weird, that was one I just sent right back to the manufacturer. I'll swap out batteries, but I'm not cracking open something with that much potential energy stored in it without me fully understanding everything about it - and unless I helped build the thing I do not know enough about it.

Pressure cooker