| br>You can patch one up with:
1 XOR (or possibly other 4Q Multiplier)
1 Divider (optionally used for pitch intervals between the VCOs)
You'll want to take the pulse output from both VCOs, use the XOR/Multiplier as the phase detection, then output the XORed output into the slew, then take the integrated voltage from there, and input it into the CV input for the second VCO.
You may need to adjust the slew a bit depending on frequency.
If you want to use the divider, place it after the second VCO and the XOR. br> br>