[sdiy] Guard Rings

[Dave Manley]

On 11/4/2010 11:39 PM, Veronica Merryfield wrote:
>> Is Q9 emitter really at the same potential as the voltage on the cap?
>
> The voltage gain is GmRe/(GmRe+1), so in this case Gm.2200/Gm.2200+1 - close enough to 1 in this case
>

Thanks, it's an emitter follower isn't it?  Guess it's time to go back to my
basic transistor circuits books for a review.  :-0


>> What's the point of R13?
>
> I can't figure that either.
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
>