Can you create, and how safe it would be, isolation transformer with two transformers? so, secondary of first transformer connected to secondary of second (2:11:2) ? In my naive thinking head, it should work. i have few microwave transformers with modified secondary (about 20-30V output from 220V input), and was thinking of using two of them…
But yes, 1A is the absolute maximum, peak value for the MOC3041M for a brief amount of time. Even the MOC3041’s 8A maximum, temporary rating is unsuitable as a peak for a typical 15A US mains.
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Many thermostats are battery-operated, and once they power down so will your air conditioner or heater. Check that your thermostat is fully operational and the connections to the wall are good.
You can also see the top of the mechanism for the tilt / swivel LCD panel, peeking out on either side of the electronic viewfinder. The viewfinder itself projects quite a bit from the rear of the camera, a decision that was apparently necessitated by the tight packaging of components in front, including the AF module, popup flash, hot shoe, and microphones.
Zaprodk bitches about the absence of a fuse — which is clearly explained to be located on a separate power entry board.
Even if you have 20A circuit breakers, 15A is going to likely be the circuit limit because most heavy-duty extension cords you can get are only rated for 15A – which, again, means charging at 12A.
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Here I have always wondered. If the power bill is such a concern, then why not buy a heat pump for water heating instead? (It drawn typically around half to a third of the power to give the same heat output.)
The camera can’t always perfectly compensate for how you move the camera during the panorama, nor for extreme perspective shifts, so you’ll sometimes see "stitch errors" in the assembled shots. The slight "stuttering" above left in a shot from the Sony A55 is typical of the mild errors that sometimes occur: Pretty unobtrusive, unless you really zoom in to pixel-peep. More dramatic errors like the crop from an A560 panorama seen above right were fairly rare in my experience. This is a great feature for dramatic vacation snapshots, but if you’re making panoramas professionally, you’ll still want to build them manually from separate shots.
Having a separate wire coming out of the box seems like an extra hazard to me. If you keep the thing self-contained with only mains-in/mains-out, I would think it is safer in the end, and removes the internal complexity of optocouplers.
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