Hot circuit breakers and dimmer switches | 25 Amp Circuit Breaker

HVDC interties certainly simplifies some things (stability, voltage control, and frequency syncing & phasing is a non-issue), particularly in lines where their length approaches a quarter wavelength (which makes voltage control at the load end difficult). There are quite a few already: http://en.wikipedia.org/wiki/List_of_HVDC_projects and the list is growing rapidly.

I’d been “dead” 3 times at that point and thought I knew what it meant to be scared, seeing that tanker about to be filled, surrounded by thousands of litres of petrol, diesel, kerosene and other agents of flaming, painful death was and still is the scariest moment of my life. After that nearly being eaten alive by a feral pig or trapped under a hang glider under water was nothing

The number on this photo is a little misleading. 337 mpg! I think I shot it after having the car for about ten minutes, nearly all of it without using the petrol engine. Still, it’s a nice little tease for any friends riding along.

In my experience there are only TRIACs that are in perfect working order or TRIACs that have exploded.

I’ve been using a relay to switch a 1000W pump. http://telecnatron.com/articles/ESP8266-WIFI-Remote-Controlled-Mains-Switch/index.html

The AVIC-W8400NEX costs $1,200, while the AVIC-W6400NEX comes in at $800, and the AVH-W4400NEX will cost you $700. All the units are available to purchase now.

Adjusting settings via the Fn menu is generally a good experience. A very nice touch is that you can use the up/down/left/right directions of the 4-way controller to move the cursor between Fn menu items, and then use the front control dial to adjust the settings. This is nice because it lets you quickly make a number of Fn settings changes in succession, without having to drop down a menu level for each, or being forced out of the Fn menu between choices. The few exceptions to this are those items with a second level of control, such as multi-shot ISO or the tweak adjustments for white balance settings. In those cases, you need to explicitly select the menu item via the OK button, and then use the left/right keys to make the needed adjustment. The only exit at that point is to hit the OK button again, which unfortunately drops you out of the Fn menu entirely.

In case you hadn’t noticed, 2010 is the Year of 3D in the HDTV space, and all the television makers are rushing to add 3D capability across their product lines. Sony has come up with a clever way of capturing 3D images using the same "sweep" technology as in their normal 2D panoramas. As the camera is swept across a scene, it will naturally see various parts of the subject from slightly different angles at different points along its sweep. Sony’s engineers have taken advantage of this to add a 3D Sweep Panorama mode to a number of their cameras, the A33 and A55 included. While the 3D data is apparently stored in a fairly standard file format, viewing the 3D images currently requires connecting the camera’s HDMI output to a Sony 3D-capable television set. Sony’s promised 3D Sweep Panorama playback support for their PS3 game consoles, supposedly coming as early as this September. That’s still a bit limiting, but hopefully as 3D technology matures, various manufacturers will be able to read each others’ 3D formats.

The standard phrase in our repair shop was “electroplated’… as in …”I took that old CRT out and whoosh…. I damn near electroplated myself into the middle of next week when I touched the bottom of the LOPT”…. electrocution was reserved for politicians… as in “….how the hell could there possibly be enough numpties in this country to electorcute that old hag Thatcher…”

Exactly, sometimes less of a compact form factor makes a better product overall. Snubber circuit is a nice touch tough.

The more you think about this the more you realise that there is actually no truly bomb proof way to organise it but the methods now being implemented are probably about the safest way for most situations.

A 25A relay seems perfect for a 22A load. If the relay is really built for 25A and not only marked as one. What use had a maximum rating when you could never really use it?