The new "inverter microwaves" use pulse-width-modulation to keep more-or-less steady heat instead of the magnetron going on for a git, going off for a bit, etc. From all the test reports I've read - it makes a big difference in the quality of heating and defrosting. Much more even and steady. But that aspect does not interest me. My interest is getting a microwave that is more "linear", so to speak. I.e., turn it down to 1/2 power and it actually only draws 1/2 power from the AC source. A conventional microwave draws full power at any power setting. Just does it "on and off" for different time intervals.
I just ordered one from Panasonic. I'm anxious to see if it actually makes a difference in amp draw when using on lower heat.
Conventional microwaves have a tough time running from inverters due to DC input voltage problems. A conventional 12 volt inverter will run most equipment with an input of 10.5- 16 volts. But - when hooked to a microwave- once the input drops below 13.5 volts the oven works poorly. Needless to say when running off a battery bank - voltage will always be below 13 volts unless something is charging the battery bank while being used.
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Today's Featured Article - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U
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