Cgs synth

--- In cgs_synth@yahoogroups.com, "bbluthang" <jumpswine@...> wrote:

> >
> I assume the 1k/100k were there to provide a hi-Z input, as Ken wrote
> - " Any signal applied to an input is first buffered by a voltage
> follower based on a TL071 op-amp so as to not load down the output of
> whatever module is driving it. "

>
> hope this helps a bit
> andrew
>

Thanks for answering the second question.

As far as the buffer stage goes, even without the 1K resistor it has a
high impedance (100K). What does the 1K resistor do? I'm guessing that
I'd be fine without it, but I would like to employ it in other designs
if it lends some added benefit.

Thanks,
peng