[sdiy] MXR Phase 100 - Can it be made VC?

[Scott Gravenhorst]

I have an MXR phase 100, which has a built in LFO, which
I assume interfaces thru some sort of voltage control
mechanism.  I'd like to investigate putting a CV input
on it that would disable the LFO and allow me to insert
my own LFO waveform/signal.  I can find schematics for
the Phase 90, but not the 100.  Any pointers?

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