Fast VCOs for wavetable

[Martin Czech]

SNIPPED
> But Magnus' suggestion got me thinking... you could also but together
> something with a regular audio-range sawtooth VCO, a counter connected
> to a DAC, and a comparator circuit.  The sawtooth reset pulse zeros
> the counter, and as the sawtooth ramps up you compare the sawtooth
> voltage with the DAC output, when the sawtooth voltage is delta-V
> above the DAC you clock the counter.  Pretty clean, and you get a
> simultaneous analog sawtooth.
> 
Why not use a comparator array in the first place?
If you take a tri wave with eg. 8 comparators evenly spaced,
you can derive a logic funtion (together with the square wave of the tri osc)
that should give a pulse train. There will bew some glitches, however.
Perhaps, since the signal direction is known , one could avoid such glitches.

m.c.