ASK Modulator Circuit Design

elow.. can anyone pls post a circuit design for an ASK Modulator... we are asked by our teacher to find an ASK modulator circuit then we'll do it in multisim... I've been searching for quite a few days and i can't seem to find one.. if you have a link to a site,pls post it.. or just a pic of an ASK modulator circuit.. thanks...

I'm familiar with Frequency Shift Keying and PhaseSK, but what is ASK?

A Google of "ASK modulator" gave numerous hits including circuit examples. It's Amplitude Shift-Keying modulation.

I'm surprised you're familiar with FSK and PSK without being familiar with ASK. It's just AM with binary states rather than analog ones.