1107 – Ausbausystem: Digitaltechnik (Digital Technology)
Although this model has the same name as the 1007 model, the experiments are different. The 1107 is an expansion to the 1103 model Elektronik AG. It explores logic circuits ranging from simple AND and OR combinations to CMOS technology with flip flops, dividers, counters, shift registers, and other digital circuits.
The instruction manual may be downloaded/reviewed here.