There were block differences between the LectronMW era and Braun Ausbausystem 1 S models.

The original Braun layout shown below is illustrated on a previously never opened (until I acquired it) unit. Note the thermister, photo cell, and light bulb blocks and the extra banana jack block.  Those blocks and part were eliminated for the LectronMW era version.

BRAUN LAYOUT

The graphic below is from the LectronMW brochure.

LECTRON-MW LAYOUT