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Ausbausystem 3 - Computertechnik

The Braun Ausbausystem 3 (Experiments in Computer Techniques) was the first substantive new model created for the LECTRON product line and was designed by and the manual written by Mr. Joachim Schubert. It was an extension model so that possession of the 8000 model was presumed. The new 264 page 100 experiment instruction manual was included along with a newly designed type of base plate. It was of inferior quality compared to the original Egger deluxe base plate and did not even have a Braun brand logo on it.

A standalone model of the Ausbausystem 3, which included all the blocks necessary to complete all the experiments profiled in the 100 experiment instruction manual, was later released as the System 300.

This model covered the emerging electronics field of digital technologies. Rather than use available integrated circuits, Braun used analog components to explore basic digital circuits. The block below is the Flip Flop component.

Flip Flop, NOT, OR, AND, Impedance Transformer, and Schmitt Trigger blocks were constructed using conventional transistors, capacitors, and resistors with larger sized blocks. ICs would be first introduced by Braun for the Demonstration 1300 model and this model required a specialized 3.6vdc power supply.

The packaging box type was also a first for the LECTRON using a hinged cover riveted to the bottom box. This model was the second model (the other being the System 300) which had the hinged cover. Both of these models reflected a new packaging approach which was featured with the line of prototype models from 1968 which were never productized.