Talk boxes...

[ted s]

... ala Peter Frampton.
Anyone here ever owned, begged, borrowed or stole one of these.
I never really new how they worked, interesting actually.

http://en.wikipedia.org/wiki/Talk_box
http://www.frampton.com/equipment.html

I just assumed that it would sit between the amp and guitar like most effects, but not the case with the original.

[Spudman***]

I'm not positive but I think we talked about these and someone posted a video of how to make your own talk box. You might want to look around thefret.