hi, i came accross this issue while working on a project. I am designing and AM radio transmitter receiver. While doing some research i found that the best way to do it is to use an MC1496 IC i also found the circuit attached to this post as a way to set it up. Now before i go and build the circuit does anyone have an idea of how the circuit works and how does the MC1496 produces an AM signal? Is it just a multiplication of the carrier signal with the input signal? Any explanation will be great.