tim-
this is cool. without excessive nerdery, could you tell me briefly
why the jFET does not need power i'm new to circuitry and i'm
curious.

thanks-
tom

--- In Doepfer_a100@yahoogroups.com, "Tim Stinchcombe" <timothy@...>
wrote:

>
> Hi list,
>
> After the recent thread about the 'purity' of the sinewaves from

the A-

> 110, I started looking at how these could possibly be improved. I

came

> across a simple conversion circuit, not that much more complicated

than

> what is in there at the moment, and when I breadboarded it, I was
> stunned at just how good the sine waves from it are - I have

created a

> new page at my website with a couple of scope traces:
>
> http://mysite.wanadoo-
> members.co.uk/tstinchcombe/synth/invest/invest.html
>
> (watch the line-wrap there!).
>
> I'm in the process of seeing how feasible it might be to actually
> modify an A-110 to incorporate the extra bits 'n bobs to do this.

(I

> also want to get the original paper of the circuit, so that I can

check

> that the component values are 'optimal'!)
>
> Tim
>