the first electronic instrument I used was made by a friend - it was a simple circuit stuck on a piece of wood and you played it by pressing strips of tin to make contacts.
Adelaide Australia, maybe 1972. We were still in school
Why you chose it - we were doing exploratory music and my friend liked making electronics
How much you paid for it. nothing
What did with it. It sounded just like the sort of circuit breaking thing people do now. We would use it when playing drums and guitars and make those circuit breaking sounds with detuned guitars etc.
If you still have or why you got rid of it. Long long gone - maybe. I think we got rid of that stuff as we conventionalised our music under the pressure of the progressive music thing and trying to sound like "proper" (ie foreign) musicians.