Samsung’s 2018 TVs now support FreeSync for smoother gaming | 25 Amp Circuit Breaker

During service calls, being able to identify undersized conductors can help resolve compressor start issues or intermittent trips of breakers or fuses. Knowing appropriate and inappropriate breaker and conductor sizes will save you and your customers time and money.

I don’t think you can get multimeters that share the volts and amps socket, since the amps is usually a shunt to the ground terminal, very low-resistance, big and chunky high-wattage resistor. Volts is, ideally, infinite resistance, but not in practice of course.

Installing a ceiling fan might not sound complicated, but it’s nothing like putting together a barbecue yourself. You’re trying to figure out the motor while hoisting a 70-pound fan 12 feet above the floor. Call me up—I can finish the job faster and safer than you could.

I guess writer JIM must be a “NEWBIE” or is otherwise mis-informed, but IEVs is continuing the FICTION that Underwriter’s Laboratories (UL) ‘CERTIFIES’ anything. He isn’t alone since every IEV writer says the same thing and its getting to be an echo chamber – but the end result is that IEVs is passing out bad information.

While we didn’t encounter any exposure accuracy issues in our lab tests, I had a little trouble with the Sony A33 and A55′s exposure system in the field. Under bright sunlight, I was generally shooting with -0.3 EV of exposure compensation dialed in. Looking at my photos on the computer later, it seemed that many of them really could have used -0.7 EV. The overexposure bias seemed fairly universal under bright lighting, regardless of whether the subject itself was low- or high-key. Shots under lower lighting didn’t seem to have the same issue, though.

But used separately, you might drive 10A through a primary and perhaps 15 through a secondary (almost requiring 2 differsnt sources,) dependant on wire gauge as the limiting factor. Now with 2 switches, you can drive the magnet at A, B or A+B strengths!

Larger motors used in rural settings and light industry may aswell use 400 voltage between phases by triangle connection. 3 phase 16A sockets are almost never seen in apartments, but are usually found from houses that have garage or other workspace with larger machinery. Larger 3 phase sockets are very common in farm setting and light industrial buildings. E.g. our hackerspace has air compressor that is fed by 3x 400V 25A line. It doesn’t even have neutral line, motor is connected to triangle and 24V for control logic is stepped down from 400V with transformer.

If Handheld Twilight and Multi-Frame NR modes are practical, Sweep Panorama is just plain fun. I’ve always been a fan of panoramic images, and spent more time than I care to remember back in the film days slicing and splicing together 4×6-inch prints with a razor blade and rubber cement, to make panoramas from sequences of individual shots. The Sony A33 and A55′s Sweep Panorama mode does all this for you inside the camera. Again taking advantage of Sony’s high-speed capture technology, Sweep Panorama collects dozens of individual images while you hold down the shutter button and "sweep" the camera from side to side or up and down. The powerful Bionz image-processing engine examines all these images, takes slices from each, applies geometric and tonal corrections to each slice, and then stitches them together into a single panoramic image. The results are stunning, and experimenting is loads of fun.

I will state this categorically: No one should imitate this hack unless they have been properly trained as an electrician. Messing around with line power when you don’t know what you are doing (even if you think you do) is a recipe for death and disaster – literally.

I had my own suggestions further up in the comments here, and I’d like to believe I expressed them respectfully, and TJ addressed them. And, as is appropriate, the article text has an exhortation to not play with HV power without due care.

The problem is that the triac may dissipate more than 15W when using it at 10A, which requires a good heatsink and ventilation. That’s a lot of overkill if you just want to control a 6W LED lamp.

Quite often, when I was in the Air Force as a Cable Dawg, I would get zapped while doing copper cable cut splices for mission critical systems. Meaning they were left powered and came back on one by one as they were spliced. -48v DC is very tingly when it runs through a crimper and into your arm…