there are many variations...
here's a couple:
http://www.youtube.com/watch?v=nqUFVWN7Ovc&feature=related
http://www.youtube.com/watch?v=Hhg9v2WYFxA
schematic:
(http://www.talkingelectronics.com/projects/50%20-%20555%20Circuits/images/UselessMachine-Cct.gif)
home:
http://www.instructables.com/id/The-Most-Useless-Machine/
notes:
http://www.instructables.com/id/The-Most-Useless-Machine/step6/Original-Design-Using-555-Timer/
The easy way to make an LFO:
http://www.youtube.com/watch?v=UkgoSOSGrx4&feature=player_detailpage#t=27s
:icon_mrgreen: :icon_mrgreen: :icon_mrgreen:
i wanna order one