Correct me if I'm wrong but the MS2000 OSC 1 can do this, It was used for doing hyper/supersaw type of sounds, infact is this not the hypersaw function of the virus?
I know where you are coming from but I will need to look more in to the hypersaw to see which part I'm thinking of, but here's a quote from the MS2000 manual.
Quote
nline ms2000b manual
Saw
This is a sawtooth wave, suitable for creating typical analog
synthesizer sounds such as synth bass and synth brass.
• Control1
Adjusting this value will modify the waveform.
A setting of 0 will produce a conventional sawtooth
wave, and a setting of 127 will produce a sawtooth wave
one octave higher.
• Control2
LFO1 is used to apply WFM (wave form modulation) to
the waveform specified by “Control 1.” The “Control 2”
setting specifies the depth of the modulation produced
by LFO1.
By setting the Page 12A: LFO1 “Wave” parameter to
(Tri) and adjusting “Frequency,” you can create the
effect of detuning.
I can't upload the diagram but it looks like the one previous, I never got too far into programming my ms2000, so not sure how good it was.