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DO NOT attempt to align or scale a VCO without appropriate test gear! Sure, you might be able to get the VCO in the ballpark as far as tracking goes, but unless you have access to a multimeter and a frequency counter (or its software equivalent), you're likely to have a very frustrating experience. You'll first need to make sure that a 1V step actually IS 1V by finding an initial reference voltage, then going up an octave; never discount the possibility that the A-111-2 is actually RIGHT and that other things are the mistracking culprits...make sure of this before doing anything else.