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The Braun Ausbausystem 2 (8200) was the second extension model and was a direct copy of the Egger 8200 model excepting the changes as previously noted in the Grundsystem (8000) model. This extension model added 40 new experiments and required possession of the 8000 base model.  The focus of this model was ‘Advanced Electronics’ and included a zener diode, a neon gas lamp, and high voltage transformer amongst others.