1. The alligator clips are annoying because cheap versions.
2. The components described are in a different design than described. In experiments with diode z. B. to be careful and previously self-employed, the positive and negative poles on the "Battery Kasterl" to find out, what is however also associated with a learning effect :-). (The Batteriekasterl has several delivery points for voltages of 1.5 to 6 volts - but +/-)
3. misspellings and unnecessary repetition in the instructions. Mostly is the meaning of various statements difficult to understand. That would have gone better.
Otherwise everything was great. I have a learning package with PC, Digital Multimeters and various literature used. Am very pleased overall with the learning curve, hence the 4 stars.
