For the above op amp circuit: Vin= squarewave with 10Vpp and 1kHz. C=0.01uF. Vcc and -Vcc is 15V and -15V. Using the above specs, I calculate R using these equations: Requirement: Create a triangle wave with output voltage Vo to be 10Vpp. This is a gain of 1. Using the above, I find R=1/(2*pi*1000kHz*0.01uF)=15915 Ohm. I used resistors to get up to 15.8ohms to be the input resistance. Theoretically, this would give me close to the 10Vpp I want. Experiment: Using a 741 Op Amp and a 103 capacitor (0.01uF), I built the circuit and measured with O-scope. The output was 15Vpp. This is 50% off of the expected 10Vpp What is the explanation for my experimental values to be way off? Someone told me that the parts I'm using are probably not very accurate to their ratings, but it shouldn't cause this much of a difference. I've also tried different capacitors and still the same thing happens.