That´s a difficult question for 2 reasons.

The first one is that is impossible to get the complexity of Edge´s tone from a Memory Toy. You might get close, specially to the first U2 albums when The Edge used 2 Deluxe Memory Man as main delay units. After that he changed to digital delay units like TC Electronics and Korg SDD.

The second reason is that The Edge´s sound (on wich he has spent thousands of dollars) is based on delay timing plus rythm guitar technique, so it is possible to get very close to his sound combining a good delay unit and a good rythm guitar technique.

My advice is to try different delay timing and feedback settings… there´s a lot of info on the internet about the edge´s sound and specific delay timing (in miliseconds) for each of his songs.

if he used 2 memory boys in a row, use the bill ruperts ehx tone tips #1 to dual loop a stereo memeory man. im guessing you wont be able to do that cause you just have a memory boy

plus – yu gotta use herdim picks the wrong way round too, its that rrrp of the dimples, like the start
of “all because of you” – honestly best edge trick ever