Turing Machine Bytes expander

Expander module for the Turing Machine which allows sequences from 1-16 steps in length (instead of the fixed 8 or 16 steps that the TM provides by default). Discussion at http://www.muffwiggler.com/forum/viewtopic.php?t=107533&postdays=0&postorder=asc&start=0

http://grayscale.info/panels/turing-machine-bytes-expander-panel-and-pcb/

• ? mA +12V
• ? mA -12V
• ? mA 5V

No info about availability.