First, you need to learn about how an AM radio transmitter works and about all the circuit sections (oscillator, modulator, RF amplifier, antenna) it needs.
Second, design and build a legal low power transmitter, not the 1200W one.
Have you selected a radio frequency for it?

Your new thread says you want to put an AM signal into a 90 ohms, 2H coil using a 600V/2A power supply. Then it will not be an AM radio transmitter, instead it might be an electric/mechanical buzzer.

The system will be perform on a lab within a cage to prevent emf from escaping. The experiment will measure emf within the coil at different frequencies. The whole setup is beyond the scope of the circuit. Mechanical switch won't be fast enough.

 

The real problem still seems to be that you have no idea what you are trying to do and you are flailing about like a fish out of water. People in your situation are seldom receptive to good advice, but still we try. Take a step backwards an explain what you are trying to do without being concerned about the implementation of the experiment. By proposing an implementation you are putting the cart before the horse.

 

Please go to the thread for real purpose.
https://forum.allaboutcircuits.com/threads/how-to-am-signal-into-an-air-coil.173902/