Lenovo’s retro ThinkPad 25 laptop leaks | Lrd12 Overload Relay

AC is safer than DC. You can let go of two AC terminals but not DC as DC keeps your muscles clenched. AC doesn’t.

The Sony Alpha A33 accepts both Memory Stick Pro Duo / Pro-HG Duo, and SD / SDHC / SDXC media, and is powered by an InfoLithium battery pack.

We did go for an L2 charger in our case because we have 2 BEVs and charging them on 1 20 amp L1 circuit wouldn’t cut it. Generally my wife uses the L2 charger for her Leaf while I L1 charge the model 3 and only borrow her L2 connection if I have been too lazy to plug into L1 for a few days. But, if we just had the model 3 L1 alone would be fine. As for the “plugging an L1 charger into a corroded outlet safety risk” some other repliers mention. Well duh. If I plug an L2 charger into a corroded 14-30 or 14:50 outlet there is even more risk. If the 120V outlet is in poor shape $5 in parts at Home Depot can fix that. Any sustained draw electrical equipment can be a hazard if plugged into insufficient infrastructure.

It is not enough to have the proper tools, you also have to use them in a safe way. The basic five rules go like this: 1. Disconnect from mains. 2. Secure against reconnection. 3. Verify that the system is really dead. 4. Perform earthing and short circuiting. 5. Provide protection from nearby live parts.

I stuck a finger in a light socket when I was about 3 years old back in Brooklyn NY and got a momentary buzz sensation. Nothing more. I got a few more 110V shocks as a US Army Air Force student of electronics back in 1944. No problems but I was warned to keep my left hand in my pocket in uncertain situations to not form a circuit through my heart, Here in Helsinki where I now live I have taken 220 V a couple of times. Nothing I’d recommend but no harm done. Nevertheless, I’m careful and never fool around with wet hands.

Before we begin, we must begin with an obligatory disclaimer: handling mains voltage can be very dangerous. Do not do so unless you are qualified! You could burn your house down. (Without the lemons.) That being said, [TJ] has created an interesting dev board for controlling mains voltage over WiFi with the now-ubiquitous ESP8266 module. At only 50mm x 25mm, it is easily small enough to fit inside a junction box!

This makes a lot of sense. There are many rather cheap dimmers that can drive a 500W ‘flood’ lamp, so it’s probably better to modify one of theses, and keep it outside the wall socket…

My testimony : 230VAC doesn’t kill if you’re lucky. Lots of people died on 230VAC (Claude François….)

I recall a battery add from the 70’s or 80’s that displayed the power of a couple of 1.5V cells powering an electromagnet that could lift a car.

I guess you missed my writing ignorant people doing stupid things People using a metal utensil to clear a jammed toaster isn’t unheard of but still there are no barriers to that. Perhaps there are bread toaster that use an enclosed heating element like many toaster ovens use, but my fairly new UL labeled toaster uses the same style of heating element hat been used for decades. That what you quoted was directed the the DIY individual more likely to come across something like this, not average John or Jane Doe.

Waterjet, who seemingly has no concept of how a basic opto-isolated diac-driven triac circuit works, chimes in with useless blabber about insufficient current ratings of the *optoisolator* — seriously? If you’re going to throw stones at someone, perhaps you could verify that you have somewhat of a clue of what you’re talking about?

The most unusual capability of the Sony Alpha A33′s video mode is enabled by its translucent mirror. The Sony A33 can continue to use phase detection autofocusing during movie recording, allowing swift adjustments to focus as your subject moves. Since standard Alpha-mount lenses are used, this focusing action is accompanied by significant levels of AF drive noise, which is clearly picked up by the camera in recorded videos. For consumers, this is likely a relatively small price to pay for sharply focused video, however, given that manually pulling focus during video capture is a difficult art to learn. If focus point selection is set to local, the Sony A33 even allows the active focus point to be changed during video capture, and it’s also possible to adjust exposure compensation during recording. Also available in Movie mode are the autoexposure lock function to prevent variations in scene brightness, and white balance, creative style, AF area and metering mode functions. However, if autofocus is used, lens aperture must be controlled automatically by the camera, regardless of AF servo mode. When using manual focus, the A33 allows manual control of aperture before video capture commences. In all cases, shutter speed and ISO sensitivity of videos is controlled automatically.