1. Sensitivity slider (VCO)

This slider controls the pitch variation range induced by the bender. At maximum, it is possible to get a +/- one octave variation. Set at around "2" for normal bending.
2. Sensitivity slider (VCF)

This slider controls the tone color variation range induced by the bender. At the upper position, wah pedal effects are imitated by moving the bender lever. If the VCF CUTOFF frequency is set high, however, the tone color variation may be poor.

3. Portamento

Portamento is the sliding of a note from one pitch to another. This controls the time required for the change of pitch.

 4. Mode switch

This switch determines which waveform will be used for VCO and VCF modulation. Controlling the VCO, it produces vibrato effects, or pitches which waver or sweep up and down. Controlling the VCF, it produces growl effects (with faster LFO rates) or tone color vibrato, which occurs in some instruments in conjunction with pitch vibrato. The other position are more often used for special effects. For example, using the square wave to modulate the VCO pitch will produce thrills.		 5. Rate control

The RATE slider controls the frequency of the modulator output. Raising the control increases the frequency. The frequency can be visually checked by means of the LED. For vibrato-like effects, this control is normally set at about "0".

Modulator

The modulator includes an LFO (Low frequency oscillator) and an S/H (Sample and hold) as shown above.
The LFO is an oscillator which generates waveforms of a low frequency. The range is from about 0.2 Hz to about 25 Hz. The output of the LFO can be used for modulating the VCO of VCF, and for triggering the envelope generator.
The S/H produces random signals by sampling the output from the noise generator at a rate determined by the LFO.