This is the bass aranged for guitar tab for Hibou, Anemone, and Bear (1969).
This part is used for the intro and main part of the instrumental section.

high e---------------------------------------------------------------------|
     b---------------------------------------------------------------------|
     g---------------------------------------------------------------------|
     d---------------------------------------------------------------------|
     a---------------------------------------------------------------------|
low  e-0--6-4-6-4-6--8---2-3-4--6-4-6-4-6--1-1p3-4-------------------------|

just repeat that for most of the song and do it fast with distortion or fuzz