Yellowjacket includes two oscillators. Their controls are mostly similar, but different enough that we'll go over each individually.
Getting Started
Top Toolbar and Preset Browser
Panel View Mode
Oscillators
Mix
Control Oscillator
Filter
Envelope Generators
Output
Keyboard Panel and Voice Modes
Keyboard Pressure
Scale Keyboard
Arpeggiator
Effects
MIDI Controllers Setup and the MIDI Tab
QWERTY Musical Typing Keyboard (MTK)
Settings
Ft. (Footage)- Sets the coarse pitch range in octave increments through five ranges, in standard organ "footage" settings. Big number=low, small number=high.
PWM- Sets the amount of modulation applied to pulse width from the Control Osc. (i.e. LFO).
Pulse Width- Sets the width or "duty-cycle" of the pulse wave, from a very narrow pulse (10%) to a perfect square wave (50%).
Waveform- Selects oscillator waveform between ramp, pulse, and enhanced. The enhanced wave is a featured we borrowed from the related Gnat synth, which was the Wasp's smaller, one-oscillator brother. Since it only had one oscillator, it included an "enhanced" wave, which is a modulated pulse-wave with a fixed modulation rate. (The Korg Poly 6 included a similar feature.)
Oscillator 2
Oscillator 2 is similar to oscillator 1 with a few minor differences.
Ft. (Footage)- Sets the coarse pitch range in octave increments through five ranges, in standard organ "footage" settings. Big number=low, small number=high.
Pitch- This can be used to fatten dual oscillator patches by detuning a small amount, or for "building-in" musical intervals. Its range is -10 semitones and +4 semitones, just like the original.
Osc. Sync- This causes Oscillator 2 to force reset the start of Oscillator 1's waveform to the beginning of its cycle. The Ft. and Pitch knob are used to set the harmonic content. The mod wheel (or any other continuous hardware control) can be assigned to the Pitch knob for real-time sweeps - right-click on the Pitch knob, select MIDI Learn, move the mod wheel, and that's it).
Waveform- Selects oscillator waveform between ramp, square wave, and enhanced. Note that unlike Oscillator 1, the pulse wave is not variable, however, the enhanced wave is the same - a modulated pulse-wave with a fixed modulation rate.