The Hertz Donut MkII consists of two identical digital 16Bit oscillators, a digital waveshaper and an internal modulation matrix.
Both VCOs have an output with three alternate Wavefrms (sine, triangle, sawtooth) and a pulse output.
The upper VCO, the primary oscillator, is followed by a digital waveshaper called Discontinuity, offering three different shaper types. The discontinuity parameter is voltage controllable (0-5V).
Tracking parameter: the modulation oscillator can follow the primary oscillator's pitch and it's possible to add a frequency offset with both the potentiometer and a CV (0-5V). This is areally outstanding feature in combination with the Thru-Zero linear FM as the frequency ratio between both digital VCOs can remain constant this way.
Between both oscillators' outputs a socket is located, carrying a logic OR betweeen both oscillators. Pretty nice for weird noisy square sounds!
Modulation Bus determines how much the modulation oscillator affects certain parameters. Modulation destinations are primary oscillator's pitch (P. FREQ), the discontinuity parameter of the waveshaper, the tracking and the main oscillator's level (AMP); more than one destination can be activated simultaneously. The amount of modulation is set with the potentiometer and a CV.
inputs 1V/octave, exponential CV, linear CV, sync
outputs: variable output (sine, triangle, sawtooth), square output
Discontinuity CV in, Tracking CV in, modulation Bus CV in, OR output
3U Eurorack module, 17HP wide, 30mm deep
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