In 1987, when my son was 10 years old, I wanted to make him a pianist. He also dreamed of a slightly different career - also a keyboard player, but playing a synthesizer, not a piano.
He asked me every day to buy him a synthesizer, at least the simplest, for example, a "Famey Mini." I stood on my piano and that was all.
And then one day I noticed that the synthesizer was suddenly stopped at me. Maybe I thought, I decided, but it wasn’t there.
About a month later, the son brings a bandura from the school, which, as it turned out, he gradually mastered on the extension. Yes, such a synthesizer the world has probably never seen before. My son at the age of ten did not think about radio electronics. But we had a book on physics, where we talked about experiments with electrophores, lady banks, discharge engines.
My son quickly realized that the condenser and discharger form a relaxation generator, the frequency of which can vary depending on the distance between the electrodes. And if the capacity of the condenser is small enough, the frequency will be sound.
Such generators he made exactly 36 - in the number of notes in three octaves.
He drank the keys from a tree and placed foil contacts under them. I made an electric car. You turn it with one hand, the other sticks on the keys. From which, of course, periodically sensibly beats the current.
But most importantly, he made it all! by Sam! In the hearing!
Today my son is a physics teacher at the same school where he once studied. At classes, he sometimes shows his unique synthesizer to students and plays on it.