Hi Julian

>>Could you proove the "crosstalk" by mounting only one LFO and one VCO to the case
> I don't understand what that would achieve

It is a basic principle of error analysis, that you go from the easy
system to the complicated system. The easy system is
- Powersupply
- vco
- lfo

If the lfo or the powersupply or your cabling has a general bug, then it
should also appear in this easy setup.

If the error does not appear, then the search for the cause has to be in
the combination with other modules.


Florian