/diy/ - Do It Yourself

So I'm pretty sick off messing with this circuit... Anyone know why a V-to-F ckt would not respond to the input voltage, and just stay at its max freq?? My breadboarded ckt and ltspice simulation are both doing the same thing. I notice that the summing point of the circuit will float up or down a few 10s of mV when I adjust 0-5V in, but the 1052 doesn't seem to be adjusting the pnp current at all (and is not moving at all). Oscillating at around 1.2Mhz, I have that ring oscillator feedback network at 5k-50pf.