Squirrel catapulting off bird feeder3/17/2024 ![]() My friend one time phoned me up to tell me he'd been electrocuted flying a kite. I had numerous shocks from electric fencing, and they thump. When the door was shut the latch plate touched the latch which was connected to the door handle.Īlso had a friend who's dad was a farmer. The installers had fixed the latch plate in the door frame with a screw into a power cable. One morning I went in after some work had been done installing a door. I don’t know whether she needed to see a doc. She was catapulted to the other side of the room but survived. I know a colleague who touched the supply line of a 1 kW tube RF power amp - 2400V at 1 A. A few minutes later I accidentally touched one of the unused BNC connectors of the scope while working it's controls, and got a shock. The scope needed to be floating (no differential probe available) so I disconnected the safety ground - just for this measurement it should be OK I thought. The second time happened in the lab where I needed to measure a signal in a big spectrometer with a scope. Next day I bought a set of fully insulated screw drivers. Seems the screw had bitten through the insulation of the hot wire. I touched the metal of the screwdriver and got a shock. Then I turned the screw to its end, using a non isolated screwdriver. I connected the lamp to the mains and tested the switch successfully. I installed it, closed the 2 plastic parts and turned the screw which holds them together for a few times. I replaced a faulty cable switch in a lamp cord. I got shocked with 230V AC twice in my life. It's a neat little thing and generally seemed well-built. yes, the 40 mm fan will obviously get noisy under load. ![]() I thought it was a mere 3317U, but the datasheet opines otherwise), so a fair bit of grunt for a mini system from that generation. It should come in just below 10 W at idle and apparently sports an i5-3470T (pretty much the socket 1155 version of an i5-3380M. If I ever find a good application for it (maybe drop in a big SSD and make it a NAS or something), I'll have to drag it out again. ![]() I was, let's say, less than e nthusiastic about working on the thing after that. Clearly no switching going on in the power supply at all. Well, one day I decided I had to take a look inside to troubleshoot the issue and during disassembly, found out that the primary filter cap can bite a fair bit if you're in 230V territory. people have been fixing them by installing DC jacks for an external 19-20 V power adapter after minimal modification. The power supplies in these are kind of notorious for MOSFETs blowing up and stuff, clearly not the best construction. I once dragged a Fujitsu Esprimo Q910 USFF PC home from work that had at one point been used to operate a document scanner but would no longer say a peep after being unplugged from the mains for 10 minutes. ![]()
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