Main Features External pitch & volume span adjustments Linear pitch change with hand movement over four octaves Linear volume control with hand movement Three sound variation controls Signal level adjustment Internal loudspeaker with headphone listening option Loudspeaker/headphone volume control Line output with muting switch for amplifier connection 12V DC operation from plugpack or battery

Our original Mk.1 Theremin was described in the August 2000 issue and has proved very popular. This new Mk.2 version features a better waveform, has more controls for adjusting the tonal quality and is easier to play, with more progressive hand control.

So why are Theremins so popular. The answer is because of their extreme versatility and the uniqueness of the sound they produce, compared to conventional instruments. Even relatively simple hand movements can
lead to complex and engrossing performances.

Many Theremins produce only simple tones but some Theremins – such as the unit described here – also allow adjustments to the tonal quality, so that the performance can be altered to suit the mood. Typically, the controls allow a range of sounds that can be varied between raspy-edged tones through to pure sinusoidal notes. The resulting sound can consist of smooth gliding tones (glissandi) or it can comprise separate notes (staccato) or a combination of both.

It really is a versatile instrument that is only limited by the skill of the player.