AW(Magnus): [sdiy] analogue phase modulation

[Ian Fritz]

At 09:27 AM 1/12/2007, Magnus Danielson wrote:

>Actually no, not more stable than the VCO has. What you do care about is that
>it is the same +/- 15V as the VCO and that the +15 V and -15 V is mirror
>images around ground, but that you want anyway.

This might be a good place for a rail-to-rail opamp, otherwise you won't 
get the +/- 15V swing, and what you do get might not be symmetrical.  But 
why don't you actually *build* one Magnus???

   Ian