I didn't say the power from the inverter "slams on and off." I said all conventional microwave ovens work that way. They cycle between full power - and no power -on and off like slow machine gun. Turning the power level down or up simple changes the frequency of the switching.
Inverter and their wave forms are just about all "stepped" in some way. The worst ones are usually called "modifed wave" inverters. The more expensive ones called "true sine wave" still have angled steps instead of curves on the waves - but work much beter on sensitive electronics.
In the early days of inverters some were really bad and called "square wave.". So, in a nut-shell from worst to best, and cheapest to most expensive - it's square wave, modified wave, and "true sine wave" when it comes to marketing terms. The only ones that are near identical to grid power are the very expensive inverters made to make grid-tie household power - like the two that run my house and barn. I have twin 6000 watt inverters and each one cost over $2000.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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