[time-nuts] Building a DMTD/phase noise set in the 21st century

Bruce Griffiths bruce.griffiths at xtra.co.nz
Mon Aug 26 02:47:16 UTC 2019


I've only used an ultra low esr 33F supercap made in Korea in the source circuit of the input JFET on a preamp. 
Down to 10Hz at least it didn't appear to add significant noise to the 4nV/rtHz @10Hz preamp.

Bruce
> On 26 August 2019 at 13:52 Didier Juges <shalimr9 at gmail.com> wrote:
> 
> 
> How do SuperCaps compare with electrolytics noise-wise?
> 
> Didier KO4BB
> 
> On Sun, Aug 25, 2019, 9:04 AM Gerhard Hoffmann <dk4xp at arcor.de> wrote:
> 
> >
> > Yes, these electrolytic capacitors can produce ugly effects.
> >
> > The winner is clearly the cheap
> >
> > < https://www.digikey.de/products/de?keywords=1189-1056-ND      >
> >
> >
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.




More information about the Time-nuts_lists.febo.com mailing list