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Instru? Tòna


Tòna is a single voice, all analogue voltage controlled oscillator

Functions: Oscillator , Waveshaper
Height: 3U
Width: 12hp

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Tòna generates all classic waveforms simultaneously and, in addition, sports a built in wavefolder as its 5th output. The wavefolder is derived from classic west coast ‘timbre’ circuits and opens up a world of rich harmonics and complex spectra, adding a touch of west coast flavour to any subtractive synth voice.

Individual outputs for square, sawtooth, triangle and sine waves, plus the additional wavefolder output.

The wavefolder uses the Tòna’s sine wave, and folds its peaks back and forth several times in order to create complex harmonic overtone patterns.

Controllable via a smooth action 30mm fader, the wavefolder control gives high precision control when sweeping through a wide spectrum of overtones. The fold amount can also be directly controlled with CV, scalable with an inbuilt attenuator.

The Tòna can be frequency modulated at a dedicated linear FM input with its own built in attenuator.

Rising edge pulses will reset the sawtooth core’s waveform cycle allowing for hard sync to a primary oscillator signal.

With a negative DC offset at the 1V/octave or linear FM input, the frequency range can be descended into LFO territories while retaining stability over all output waveforms.


Power: +12V: 60mA / –12V: 60mA
Depth: 27mm

Sawtooth core analogue oscillator
1V/octave, Coarse and Fine pitch controls
Oscillator hard sync
Linear FM with attenuator
Individual outputs for Sine, Triangle, Sawtooth and Square waveforms
CV controllable ‘timbre’ wave folder with dedicated output


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