Scanned and colour-adjusted versions of the pencil drawings I used as a guide to construction.
ORAC concept drawn from observations of the series videos.
The circuit to drive the rods and the orbital lights.
(Two 1 of 16 analog switches driven by dual 4-bit counters.)
The circuit to drive the brain-ball.
(A very crude dual digital to analog converter driven by dual 4-bit counters.)