Re: FG 502 Adjustment and Possible New Issue

Roger Evans

R170 actually controls the slope of one half of the triangle wave by adjusting the strength of one half of the constant current source into the timing capacitor. You want to make the positive and negative currents equal so that the positive and negative slopes are equal and the positive peak is half way between the two negative peaks. The square wave switches when the triangle generator switches between the charge / discharge cycles so that makes the square wave 1:1 as well. It is easier to adjust the way you did it!


Join to automatically receive all group messages.