noise
noise
Good afternoon, prompt please. I am concerned about the noise on the chart. I had problems with the calibration of zero and calibration of the vertical divisions and I decided to selection of the resistors r11 and r10. Just had to adjust voltage dividers R6 R7 R8, because on different subgroups of different vertical calibration. Also, I solved the problem by replacing the inductor ripple JYE116 L2 4.7. But still there are noises. I added to microfarads c27-29 filters. Ripple does not exceed 10 mV (were> 40) after JYE116 and more than 2 mV after AV +, AV-, -5V. I also replaced the TL084 to OPA2134 - it is less noisy. It may be the case in the firmware? You plan to release a new firmware? DSO 138 for you are constantly updated. Or noise associated with low display resolution to a higher resolution, I would not have noticed them?