Am 26.08.19 um 04:47 schrieb Bruce Griffiths:
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.
I had bought some at DK, but 30 Ohms or worse at AC in the source produce >700pV/rtHz alone.
That would add (geometrically) to the 300 pV/rtHz of one Interfet IF3601/3602
and spoil the pot, so I stayed with the multiple electrolytics with milliOhms.
regards, Gerhard _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
