Could there be any harm using these?
Any benefit over polarised?
I guess, there might be a benefit, if i try to maintain high signal level voltage in the system (bipolar psu opamps)
Here is the curcuit (attached).
What if I keep only the input caps (the digipot input)?
Would the shunt resistors at the opamp input/ output make problems if there is a dc offset and dc coupling (without coupling caps10uf)
I mean, the dc offset would cause small constant current through the 68k(input) and 10k(output).
Would that cause noise or make the digipot distort (dc coupled,loaded with 68k)?
Not sure if the digipot(some cmos matrix) coul have a dc offset
Any benefit over polarised?
I guess, there might be a benefit, if i try to maintain high signal level voltage in the system (bipolar psu opamps)
Here is the curcuit (attached).
What if I keep only the input caps (the digipot input)?
Would the shunt resistors at the opamp input/ output make problems if there is a dc offset and dc coupling (without coupling caps10uf)
I mean, the dc offset would cause small constant current through the 68k(input) and 10k(output).
Would that cause noise or make the digipot distort (dc coupled,loaded with 68k)?
Not sure if the digipot(some cmos matrix) coul have a dc offset
Attachments
Nonpolar/bipolar capacitors would be fine, and perhaps sound better.
Try the Nichicon UES series, 10uF 35V rating.
You should be able to bypass the op amp output coupling capacitors, since they have an input capacitor,
and the op amp is set for unity gain, so any output DC voltage offset should be very small (<5mV).
Try the Nichicon UES series, 10uF 35V rating.
You should be able to bypass the op amp output coupling capacitors, since they have an input capacitor,
and the op amp is set for unity gain, so any output DC voltage offset should be very small (<5mV).
Last edited:
Have some 'elna' 50v, but only 20 pcs, needed for 3 circuits like these and other coupling.
Now wondering if dc coupling is ok (leaving out some of them).
Now wondering if dc coupling is ok (leaving out some of them).