I must admit, this might not be the best place to ask questions about op amps(regarding that this site deals with better stuff than op amps!). Regardless, I run into the darn things like it or not and don't know enough about them to usually do much with them. My question here is, even though I have already ordered 2134 opa to replace some out dated 4136 opa, I still wonder if I have made the best choice for substitution. How might I go about about finding info such animals and compare them? Thx, Greg