Preliminary Schematic

Here is my preliminary schematic for a Turing machine. It has four cards (four instructions), and a 16 bit "tape" or display. It should be able to play Busy Beaver III (https://en.wikipedia.org/wiki/Busy_beaver). I may extend the tape so it can play Busy Beaver IV:

The top half of the schematic is a Finite State Machine (FSM) and the bottom half is the LED ribbon.

Here are the Busy Beaver programs (III, IV and V):

(Source https://en.wikipedia.org/wiki/Busy_beaver)

Here is a Busy Beaver "tower":

(Source http://demonstrations.wolfram.com/BusyBeaver/)

AlanX