[sdiy] Phase shifting CV?

[Grant Richter]

What would work is Ron Rivera's "Phase Modulated Synch". This was a  
mod they used to do to ARP 2600s.

It is done with sawtooth oscillators and hard synch.

You use a comparator followed by a monostable (555) on the sawtooth  
of the Master Oscillator to generate short hard reset pulses for the  
Slave Oscillator.

You can then voltage control the comparator threshold to vary the two  
oscillators relative phase.

Simple but effective.


>> Does anyone have any circuits to phase shift CV (like from an LFO)?
>>
>> I'm picturing the following patch:
>> 2 vcf's in stereo, LFO sine out to each FM in, but phase shifting  
>> one of
>> the sine waves so the modulation from the lfo is also phase  
>> modulated.
>> This would create an interesting stereo effect.
>>
>> Also could be cool for vibrato on 2 vco's or really ton's of stuff  
>> for
>> that matter.
>
> An easy patch would be two VC LFOs tuned to close to the same  
> frequency, then feed one or
> both with a control voltage input. For a different effect cross  
> couple them with the
> output of each feeding the control voltage input of the other. A  
> envelope generator or my
> envelope lag generator can also be used to delay one LFO to create  
> out of phase signals.
>