anyone whos listend to the 1st Rage Against The Machine CD will know what im on about,
tom morello used his guitar (and presumably some effect\)
to mimic record scratching.
anyone know what kind of effect this would require?

Someone correct me if I'm wrong, but I think it's a lot of distortion, the heel of his hand doing the scratching, and a litte whammy pedal to change the pitch a bit.

RDV

The secret of this trick is use a Les Paul style guitar, or another one that have the same kind of switch. Tom uses his left hands in the strings to produce the scratch sound, and use his right hand in the switch to create the rhythm. Here the Les Paul switch enter. That kind of switch allows you to select only one pickup or both at a time. Tom puts the volume of a unused pickup in zero, then when he switch to this pickup, the sound is cutted. You can do this with a coin, create the scratches in the strings and, to create the rhythm, just don't hit the strings when you want to cut the sound. I think there's a Whammy to create a octave up sound in RATM's sound.

I used a wool glove in my left hand (with fingertips cut) because of the cold, and with heavy dist, if i run my fingers or palm softly against the strings, i could get some cool "scratch".

Have fun!

It's cold in Argentina?

RDV