Sequential Timer Programmer developed and built by Dr Jack Tait, Clyro, Herefordshire, England, 2012

This is the second in a group of 4 sequential timers that are the ‘brains’ of some of Jack Tait’s analogue drawing machines. It allowed higher speeds of short time pulses sent to the different machine motors. When Tait's drawing machines are outfitted with timers, the set up functions as an analogue computer.