The Buchlabor kit was unusual in that it had 3 blocks in it which allowed for different components of differing values (resistors and capacitors) to be inserted into a circuit to assess their effect. Several such components were actually included in the kit. The earphone was not attached to a block but rather to two prongs which could be inserted into the blocks in accordance to the requirements of a particular experiment’s schematic.
With only 11 blocks, the manual detailed 52 experiments geared toward a younger audience using a cartoon character called ‘electron’. The experiments progressed in complexity from a simple light circuit to a bistable multivibrator (flip flop). The background and explanation for each experiment was detailed and comprehensive with multiple tests and questions for the experiments.