I am using a high power op amp (PA194) in the non inverting manner. It has a gain of 70. I used it with a single feedback resistor, and it worked. However, i had to change it to multiple resistors in series to take care of the wattage issue when using just one resistor. When I make the change to multiple resistors in series, it begins to suck more current and the op amp just oscillates at around 1Mhz. It works, but the high frequency oscillation is present. When I change back to just 1 feedback resistor, the issue goes away and everything is happy again. I did some searching it signs point to parasitic capacitance....what else could it be?