A suggestion for folks who have the SE scope and find the offset null adjustment to be quite sensitive. Try putting a 10 to 50 Ohm resistor across each trim pot to reduce the sensitivity. As long as the null point is still within the adjustment range of the pot, the lower the resistor value chosen, the better for ease of adjustment.
For the the price of adding 2 resistors to the circuit this should solve the sensitivity problem without the need of an unreasonably low value trim pot, while still maintaining a low impedance reference point.
For the the price of adding 2 resistors to the circuit this should solve the sensitivity problem without the need of an unreasonably low value trim pot, while still maintaining a low impedance reference point.
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