[sdiy] LFO with two outputs (one being variably phase shifted)

[DSL FODA01]

Hello all,

I am looking for an LFO circuit that puts out two triangle waves (or
approximations therof) in which one wave can be variably offset from the
other one in terms of phase.  It would have two knobs - one to control the
frequency (say from 0.1 Hz to 10 Hz) and another to adjust the phase offset
of the second output with respect to the first one, say from 0 to 180
degrees.  Also hopefully there would be little or no interaction between the
two knob settings.  If anyone has an idea for such a circuit, please pass
along...

thanks!

Dave