[sdiy] Working with ASM1 VCO.. TEMPCO resistor Temperature compensation

[Michael E Caloroso]

You can change R9 and R14 as long as the 18mV/oct voltage division is
maintained, and you need the tempco for 1st order compensation of
temperature variations from the expo transistor.

MC

On 1/20/20, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
> Working with this VCO circuit :
>
> https://www.elby-designs.com/webtek/asm-1/vco/vco-asm1-cct.pdf
>
>
>
> If I change the R9 value  from 56k to 33k for new design reasons
> will it affect the temperature compensation between the R14 TEMPCO and Q1 ??
>
>
> Is this R9/R14 ratio important temperature wise
>
> Or just a voltage divider to get a final 18mV/oct to Q1 ?
>
> Thanks
>
>