CDUniverse has audio clips of "Penetration" by The Pyramids on the albums listed below. To listen to a clip, click on any album name and you will be taken to a CD product web page with a list of album tracks linked to song clips.
Rock Instrumental Classics Vol. 5: Surf - Various Artists - Rhino
Surf City's Greatest Hits - Various Artists - Quality
Teen Beat Vol. 5 - Various Artists - Ace Records USA