Solar NAND diy synth.
In one day (minimum 3 hours) workshop participants are building NAND-synthesizer (1-4 oscillators), which gets its energy from the sunlight or other light sources. The sound changes according to amount of light. The workshop is simple approach for learning diy synth building and basic electronics. View example video: youtube.com/watch?v=3PmUMQGa0X0 .
Material fee starting from 15€. No previous experience in electronics is needed.
Optionally workshop can be made in two days and synth is made with own amplifier and speaker.