SV: [sdiy] QVCO schemo up

[karl dalen]

Now ,this is elegant!
Very neat, splendid work Ian!

Is this also "trough zero" if i modulate one of the OTA inputs?
or both inputs in each cross pair?


REg
KD
 
--- Ian Fritz <ijfritz at earthlink.net> skrev:

> Here's the quadrature VCO I discussed yesterday.  Please don't take the 
> indicated signal labels too literally -- they just indicate the 
> correspondence of the circuit to the diff eqns, not the actual voltages.
> 
>    Ian
> 
> http://home.earthlink.net/~ijfritz/xfer.htm
> 
>