Driver MOSFETs

One can use the steppen motor drivers from RepRap for driving the solenoids in the automation of The Liberator - see

This should be a drop in replacement for the TIP120 darlington drivers with all round better performance. 32A, 100V max and only GBP0.87 each in small quantities.

http://octopart.com/info/STMicroelectronics/STP30NF10

Only testing will be definitive.