12-10-2017, 01:40
Quote:Out of curiosity, is that change in gain linear?
Yes, otherwise things could not be done so easily.
Quote:If the gain of the OP-amp is "3" with the pot at 4.9k ohms, what was the gain with the pot set for 4.7k ohms or after I changed it to 4.81k ohms?
I said around 3R2 = 4900 Gain = ~3.040816
R2 = 4810 Gain = ~3.079002
R2 = 4700 Gain = ~3.12766

