Can someone tell me what effects are used?

Skold		13 Jun 2008 01:06 \| Quote
Joined: 14 Mar 2008 United States Karma: 3	In the guitar intro for this song: http://www.youtube.com/watch?v=-rSyNo1CXBU

foogered		13 Jun 2008 01:37 \| Quote
Joined: 30 Apr 2008 United States Lessons: 2 Licks: 11 Karma: 9	Tremolo, and that's all I believe. Listening to it again, it sounded like on occasion he'd get a little feedback which is how he got that trembling high-pitched note.