Scary Terry Talking Skull Kit with ST-425 board

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ST-425 Skull Kit
3.63 LBS
Calculated at Checkout

This item is currently out stock due to no inventory of the servo mounts. It is expected to start shipping again on 7th Jun 2023

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Kit Version of our ST-425 Skull

This kit provides are supplies necessary to build one of ST-425 Skull. You provide the labor and tools and save yourself some money!

Kit contians:

  • 1  skull. 
  • 1 Just The Guts Kit (servo, servo mount, screws, wire ties, & piano wire)
  • 1 ST-425 Scary Terry Audio Servo Driver board
  • 1 stereo male-to-male 3.5mm audio cable
  • 1 set of LED Eyes - Ultra Bright Red
  • 1 9VDC power supply (only provided with units sold in the U.S.A.)

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.

A free audio editor, called Audacity, can be downloaded from


Manual for the ST-425 board that is used with the skull.
Manual for the Skull Kit (only for the Kit, not the completed skull).
Skull Kit "How To" videos, Part 1 and Part 2

13 Reviews Hide Reviews Show Reviews

  • 4
    Lacks Documentation But Good Video

    Posted by Schneb on 10th Feb 2016

    The skull is nice and hefty, the mount is precise and solid. A bit shocked that there were no instruction provided in putting this kit together. Even if there was one paper with YouTube addresses to the DIY video, that would have been great. Instead, I had to search it out.

  • 4
    great product

    Posted by Unknown on 28th Oct 2015

    love the skull working great

  • 4
    Talking Skull

    Posted by Eyskens, John S. on 17th Sep 2012

    The reaction is not as expected; extremely slow and it looks as though the jaw bone is trying to open when it should be closing. I have not had any time to play with it much yet to see if I can adjust it like it is outlined on you tube. I bet I can get it to react better once I have time to adjust the gains.

  • 5
    Love my talking skull

    Posted by Shaggy on 1st Sep 2012

    Best support of any Halloween theme company.

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