GingerGiant:
retrolefty:
Yes, 071s would be much better. There is a big problem wiring this circuit to an arduino. The second stage is operating as a simple comparator so it's output voltage will only ever be one of two values, either +15vdc or -15vdc (actually somewhat less as a 741 is not a rail to rail op=amp) and both those value are too high positive and negative, and will damage an AVR analog input pin, which can only handle voltage ranges from 0 to +5vdc.
LeftyThat gives me an idea. What if I wired up the second op amp using the 5V and GND from the arduino for its +Vcc and -Vcc?
That would solve the over voltage problem for connecting to an arduino.
I've been trying to test the circuit, but my power supply does not appreciate something I'm doing. After several seconds of activity, the output signals dies. I can get it working again if I turn the power supply on and offf. Recommendations?
Sure, troubleshoot your circuit, compnents, power supply, or wiring until it doesn't do that.
Lefty