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Showing results for tags '60hz'.
Hi all, I've run into an unexpected problem. Issue It seems that when I use both scope channels within the same circuit (at least for this circuit) I get tons of 60Hz noise and its harmonics. Using a single channel does not generate this kind of noise. Setup I am using a 3 channel DC supply plugged into 60hz wall power that feeds my breadboard circuit in two areas. My breadboard circuit is a simple non-inverting op-amp whose input signal comes from a constant current source excited thermistor. The gain is ~ 30 V/V. I'm using the Analog Discovery 2. Detai