Stinky Poundland USB PSU.

My Apple laptop charger often gets mixed up in the bedclothes and gracefully switches itself off. No melting - just unplug it to reset the trip.

Graham Parks

“Sooty ring”, fnaar fnaar :)

Phil Collins

Babies poking things but also just spilling water on the vent holes which could be a very possible scenario.

Due to the proliferation of April Fool videos on YouTube today, I was expecting this video to go off at a comedic tangent at any moment.

Watching you handle those tiny leads and soldering em reminds me of watching a bear salmon fishing.

Nice Clive.. I bought two of these Poundland adapters following your teardown, and they've been great - I haven't tried wrapping them in blankets of course.. I did have a power supply for an Archos media player almost catch fire one time when it got lost in the bedclothes - ended up with the case seriously melted and out of shape. So I can attest to what you're saying about keeping these supplies well ventilated

Gordo

I'm always so leery of breaking the edge of my snips! I have a variety of them for various gauges of wire and such. Here are some of them: <a href="http://randomer.net/stuff/snip-stack.jpg" rel="nofollow noopener" target="_blank">http://randomer.net/stuff/snip-stack.jpg</a> I also recently got a cheap-ish 8" metal plate shear, but haven't bolted it down to my bench yet: I still need to reinforce the bench and get the right length bolts, but I can still use it to cut PCBs. :D

Martel DuVigneaud

Re: Why no ventilation. It's almost certainly a combination of vents increasing mould complexity of the plastic housing combined with the heat dissipation effects with the housing itself. Any passive airflow through the unit wouldn't help out significantly given that under normal circumstances (not underneath a blanket/shirt) the components will stay under any concerning heat levels. No reason for it on something so cheap.

Cellivar