How do I design and construct an inverter?

 

a 7404 Integrated Circuit is a Not gate chip or an "Inverter" google a 7404 data sheet to see the pin orientation.

 

How do I design and construct an inverter?

Start by gathering the facts.

1) What is the required output voltage, current and frequency?
2) What is available for the input voltage and current?

 

a 7404 Integrated Circuit is a Not gate chip or an "Inverter" google a 7404 data sheet to see the pin orientation.

I think he's talking about something like a 12VDC to 120VAC inverter, it's a common request here.