5. Quad Phase
You have no VCO's left, but a lot of Filters available...Don't worry :You are in business...
The following patch uses two oscillating VCF 's in lieu of two sine VCO's : i.e the Bandpass outputs are fed back into the inputs with the resonance (Q factor) at the maximum and the Frequency cutoff point (Fc) set low/very low.
The top VCF, which is set in the audio mode, is Frequency modulated by a Random Noise Generator (White noise). The Bandpass output is patched into TWO Stereo Equalizers ,acting as four independent comb filters, whose respective outputs are connected to four VCA's.
The lower VCF is set in the LFO mode: the Bandpass output signal (which is 90° out of phase) is connected to the control input of VCA1, while the Lowpass output signal (which is in phase) is connected to VCO3.
Also, the Bandpass output is patched to an Inverter (the signal is 270° out of phase) and sent to the control input of VCA2. Similarly, the Lowpass output is patched to an Inverter (the signal is 180° out of phase) and sent to to the control input of VCA4..
The result is an interesting phaser sound that you can use in many 'atmospheric patches'...
