engleski

Theremin's Electronic Musical Instrument

This paper presents one realization of Theremin's electronic musical instrument. Device is projected in 'analogue' version and is based on Butler's oscillator. In order to obtain as wider as possible output signal bandwidth, depending on musician hand movement, the base frequency is positioned relatively high, around 400-kHz. The circuit is extended to its second part, practically equivalent to the first one, but used for volume control. This results with the fact that the instrument has to be played using two hands. The paper is concluded with some proposals for realization of receiving antennas, which act as variable capacitors in a physical sense.

Theremin; Butler's oscillator

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