Movie mode. The Sony A33 offers high definition interlaced video capture at up to 1,920 x 1,080 pixel resolution, commonly known as "Full HD" or "1080i." While Full HD videos are recorded using 59.94i or 50i interlaced field rates, the actual sensor data is clocked off at a frame rate of 29.97 or 25 frames per second. Using the non-standard 1,440 x 1,080 and standard definition VGA 640 x 480 pixel modes, progressive scan videos are created, matching the same actual sensor frame rates. One quirk of the A33′s design is that when shooting VGA videos, the focal length crop is increased just slightly, yielding a video feed that appears to have been shot with a more powerful telephoto lens (and in the process, making wide-angle video harder to achieve). The closely related A55 model doesn’t share this feature, which we’d speculate is likely due to some limitation as to how data can be most efficiently clocked off the CMOS image sensor in video mode.
Converting mains voltage down to 12 or 24VDC to drive a heating element makes no sense. To get 120 watts at 12 volts requires thick wires that can handle 10 amps, whereas at 120V, tiny 1A wires will do. If you’ve ever felt the MOSFET that switches your heated bed on and off, you know it’s working hard to pass that much current. [Makertum] is of the opinion this is a dumb idea. He’s creating a 110 / 230 V, mains-powered heated bed.
It must be completely fine, and I actually prefer IEC equipment (that is double-listed) for many applications, but whenever I have visited Europe, the general level of electrical safety (and the way things are wired) has often seemed a lot sketchier. Then again, they benefit from three phase just about everywhere, and their distribution network is nicely balanced. The NEC and life safety codes in general in the US seem comparatively highly conservative but I suppose I don’t particularly mind. Would your experience agree?
Indeed, I did a HV Course at a functioning power station where once you had isolated an 11kV switchboard you had to grab hold of the bus bars to show the other workers it was safe to carry out their work.
It’s not that simple according to National Electrical Code (NEC) NFPA 70 for several reasons. Here are some additional factors to be considered:
Try it- measure the voltage between the neutral and earth ground pin on a North American outlet. If the voltage is near zero, then you have a bonded ground system. If you see 1V or more, then you either do not have a bonded ground, or you have poor / undersized / or very long wire runs between the breaker box and the point you’re measuring.
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Found said bare wires and had the ultimate Homer Simpson moment after separating them (probably when the lights weren’t plugged in), and thought ‘hey wouldn’t it be fun to complete this mains circuit across my body’. I didn’t really check with the lights lit up, but I was having a whale of a time juddering and screaming for a few seconds till somehow I managed to let go of the wires 
110/220 is the load rating and 120/240 is what the circuit provides. The voltage could sag as low as 110 or 220 in use.
inserts probes into amperge socket sets to VAC and measures 120v wall socket meter goes bang and lets blue smoke out
Most significantly, today’s Corolla arrives sat atop the Toyota New Global Architecture (TNGA), a complex name for underpinnings that, in this form, have already demonstrated considerable promise in cars such as the high-selling CH-R SUV, hybrid Prius and soon-to-be-on-sale Lexus UX.
It’s a great idea but a shame it isn’t laid out correctly, The traces on the low voltage side of the opto-couple are too close to the mains voltage and also the trace from resistor R8 to the opto is too close as well.
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