During a conference of Electrotecnicians in 1920, he offered the Termenvoksa or Heterophone, or Theremin, as it was named internationally. Individuals on the conference noticed a little box with two antennae, a person on the best and one within the remaining. Could it's a different style of telegraph? Or an https://drum-handling27404.azzablog.com/38751007/detailed-notes-on-mezzanine-gate