The circuit inside the skull allows you to easily hook up audio to the circuit board to drive a servo for animating the jaw of your prop. Easily create a prop with that highly sought after animatronics effect!
Operates off of a 6 to 12VDC supply (available in the Accessories section). The unit has an 3.5mm (1/8" stereo) style audio input that can be driven by just about any CD player, Tape Deck, MP3 player, etc.
Switches on the Scary Terry Audio Servo Driver board allow you to choose the Left, Right, or both audio channels to drive the servo in the skull.
Some great dialog for your Scary Terry unit can be found at the hedstorm site. There are Old Lady Skeleton clips, Rimshot Skeleton clips, Damien's Old Guy clips, Jack & Dave Clips, and bunch of other great stuff!
Also, check out there Music CD's to add some great ambiance to your haunt. They can be found here.
A free audio editor, called Audacity, can be downloaded from www.audacity.sourceforge.net
Push Eject of the Halloweenforum.com has created an excellent video of how he uses this circuit and an audio editing program to make the jaw movement on his Bucky more accurate. Click here for the video.
Also available as a kit (you mount servo, drill all the holes, and attach the jaw etc.).