I have the Mk II here. I understand that significant differences include the following:
Input stage significantly improved - quieter, more resolution.
Left and right boards floating - spring isolated (were tied together, non-floating in Mk I). This is easy to tell because the tubes for the inputs can be pressed down on the Mk II.
Input stage significantly improved - quieter, more resolution.
Left and right boards floating - spring isolated (were tied together, non-floating in Mk I). This is easy to tell because the tubes for the inputs can be pressed down on the Mk II.