Thomas Henry Tunable Noise Source Question

[DCMagnuson at aol.com]

In a message dated 11/20/00 10:38:10 AM Eastern Standard Time, 
music.maker at gte.net writes:

> This design is intended for an expo system, but I use
>  linear (FatMan).  It's obvious that if I simply mix
>  the diode noise with a linear CV that the effect will
>  be greater on lower notes than higher ones since the
>  noise will be a lower proportion of the CV signal as
>  the pitch CV rises.  My first idea is to use an OTA as a 
>  VCA to control the amplitude of the noise being mixed.
>  I think this will work, but is there some simpler way
>  that I'm missing?
>  

<Speculation>

The 566 VCO has a linear response.... couldn't you just remove the expo 
section of Tom Henry's circuit, and simply level-shift your linear CV to the 
appropriate range for the 566? (I don't know if it would need a resistor 
divider or some type of amplification... and I don't have a V/Hz system to 
experiment with)

</Speculation>

Dave Magnuson