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EDITS:    14/6/19 - updated navigation link                27/6/19 - updated post for built power stage Prototyping Board I'm waiting for new PCBs to come before cracking on with this but whilst I'm waiting I will work on the 4Duino interface and I created this prototyping board.  The PCBs are the old ones (but don't change in size or appearance much).  I've kapton taped the switch as well as used hea ...