[sdiy] Thermal contact of exponential convertor components

[John Loffink]

The VCO mentioned is Paul Schreiber's MOTM-300 Ultra VCO.  

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: Ian Fritz [mailto:ijfritz at earthlink.net]
> 
> 
> At 11:17 PM 5/16/2004, John Loffink wrote:
> >You'll want the most accurate compensation whether you're doing regular
> 12
> >equal scales or microtonal scaling.  The best pitch accuracy I've seen
> for
> >an analog VCO is +/- 0.7 cents over a six octave range.
> 
> That's *very* good tracking (better than 0.1% per octave).  To maintain
> that kind of accuracy over temperature requires *very* good temperature
> compensation.  (Such as my dial-a-tempco).
> 
>    Ian
>