All through a convention of Electrotecnicians in 1920, he presented the Termenvoksa or Heterophone, or Theremin, as it was named internationally. Those with the conference noticed a little box with two antennae, 1 on the proper and one particular about the left. Could it be a completely new type of https://erickextll.blogginaway.com/39136033/top-latest-five-mezzbarriers-urban-news