The Oh My Darling Rangemaster PCB
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The board can be configured with jumpers as a straight Rangemaster or either of two Darlington variants. The instruction manual files are here:
http://diy.smallbearelec.com/Projects/OhMyDarlingRM/BeginnerInst1.pdf
http://diy.smallbearelec.com/Projects/OhMyDarlingRM/BeginnerInst2.pdf
http://diy.smallbearelec.com/Projects/OhMyDarlingRM/BeginnerInst3.pdf
http://diy.smallbearelec.com/Projects/OhMyDarlingRM/BeginnerInst4.pdf
http://diy.smallbearelec.com/Projects/OhMyDarlingRM/BeginnerInst5.pdf