This model was sold as the Ausbausystem Physik Experimentell (Part Nr. 8 110 070). The manual/book was listed as Part Nr. 8 170 570.
This model was the second collaboration between Lectron – MW and the German publisher Diesterweg (now part of the Westermann Gruppe). The first collaboration had been Hartmut Biret‘s Funktionsmodelle (Versuche zur biologischen Nachrichtenverarbeitung) model.
The photo below shows what was included with my acquisition unit. An extra book was included discussing digital electronics in physics. Unfortunately, there were no Lectron System circuits in that book.
During my December, 2014 trip to RWO, I found an archival document which was comprised of the original hand drawn notes of Mr. Saucke’s for this model’s development. The full document may be examined here. A couple of the pages are shown below.
This model featured a very basic curriculum (see index graphic immediately below), perhaps one academic level above the Buchlabor model. Basic concepts such as current flow, resistance, batteries, basic digital logic, and finally semi-conductors were discussed and demonstrated through the use of the Lectron system.
The transistor overview and experiments section.
This is a very rare model and I owe many thanks to Mr. Günther Stabe for pointing out its January 2016 eBay auction.