[sdiy] VCO tuning philosophy re-visited

[luther rochester]

On 2/7/11 7:55 AM, Ian Fritz wrote:
> At 02:23 AM 2/7/2011, lanterma at ece.gatech.edu wrote:
>
>> Would you recommend the LM331 for use in regular audio VCOs too (i.e.,
>> non-ultrasonic ones)?
>
> That method has never been popular, I believe because the output is a
> narrow pulse. There is a mV level Saw available also, which you could
> try amplifying.


Forgive me if this is a noob question, but what about using the above 
example (or a DCO) for tuning stability, then have a second, 
nicer-sounding but perhaps less-stable-on-its-own VCO that's synced to 
it, but only give the second VCO at the outputs? Is this something 
that's been done?

-- 
./luther