I was thinking today about a whether it would be feasible to implement an inverter using a simple sine wave oscillator (perhaps op amp based or a Wien bridge implementation), a power amplifier stage and a step-up transformer. The more common simple circuits online use a 555 or a 4047 and as such the inverter has a square wave output as well.
However I'm sure I'm missing something here because an implementation would surely exist if it were plausible. So what are the limitations of using the the setup I mentioned earlier?
PS: I understand that buying an inverter would be more efficient and more cost effective. Just wondering if what I'm talking about would actually work at all.