Tea bags!!!

I've successfully used tea bags (dry of course) to get rid of cigarette odors from a DSLR I bought secondhand. I just put the camera along with lots of tea bags inside a plastic bag, wrapped it up, and left it overnight. Maybe more time is needed depending on how smelly your stuff is. The tea will absorb and neutralize the odors. It will leave a slight (but pleasant) tea smell of course but after airing the item away it will be alright (a blower/vac is always handy).

Another alternative is ozone generator but it's a bit overkill.

Maybe dishwasher 😉

One thing I've found that helps quite a bit is making sure that fans are cleaned thoroughly with some kind of cleaning solution (I've used those pre-moistened lysol wipes since they are abrasive and easy to have on hand). You should always blow them out, but actually cleaning the blades and as many nooks and crannies as possible will help the fans not to add unpleasant dusty smells to the air as it passes through.

Works good for power supply fans too, if you're comfortable opening them up.

Are we talking about the old-electronics smell of stuff from the early 80's? I'm rather fond of it. They should make scented candles with that aroma.

I'm thinking it comes directly from the plastics in use at the time, or maybe some component of the circuit boards. I doubt there's any getting rid of it.

I don't know how this should be applied in a safe way.
A mixture of vinegar and water, takes all sort of smells in a room. Smell's like cat piss and cigarette smell's.
I have seen it in every bar throghout the 90's.

Disassemble, brush parts with soap and water, dry, reassemble. Don't do this with parts that soak water such as paper loudspeakers though. Makes the feelings about the router that had cockroach hulls inside a bit better 😀

thats easy, tourture test it will burn the smell off of components

Once i applied WD40 (that anti-corrosion oil).

Listen, i believe this well known product will cause harm to electronics.
That's too bad cause this product endows radiance and smell pretty good, and that remain.
The unit is question was not working, so nothing to lose. And for my surprise, the unit is well and alive for 6 months now!

Didn't do a bad thing after all ?

Dont know about Vinager + water. What i know is, vinager is the best against rust. It can remove all the rust, but will mow down a little bit of the metal, so no good for precision parts.

So i say, follow the code (Isopropyl alcohol) or these suggestion over here, but water for me is a last stand.