Soft sync and medicine to cure it.

[jhaible]

> This discussion also makes me think of the MiniMoog, too weak powersupply
and
> thus noisy powerlines which made it less prone to lock the oscillators to
> each other. When I was in Gothenburg and standing in line to get some
coffie I
> also came to think of the addition of noise into the oscillator CVs in
order
> to make them less eager to lock. Maybe that could also be of interest.
However,
> the noise level should not be too high.

One should be able to introduce a controlled amount of psu noise at the
reference
pin of adjustable 3-pin voltage regulators (AC-coupling for the noise). Not
testet.

JH.