Hard Sync on XFX Wave

[auretvh (Auret Van Heerden)]

You can shift it with a delay:

creating quadrature from mono output osc

This actually works extremely well: [vco delay] The signal is delayed by 180 degrees, so the sine wave cancels itself out (as shown in the second scope). I had to make the delay adjustment -1 sample to make up for the extra cable. This is with the octave module set to +1 octave. For 90 degrees set it to + 2. Try replacing the octave module with an LFO

If that would work for you?