Analogue systems

Hi,

I bought the RS85 and I'm not that satisfied with it. Not because of the module but because I'm used to having 1 pot to control the LFO frequency. (Like the commercial synths have...)

For instance I want to create A very fast to very slow sweep in a full anti-clockwise turn.
This is not possible with this module, I have this switch next to the pot that needs to be set in high, mid or low mode...

Think this module is more meant for fine-tuning of frequency instead of sweeps.

Any idea what I could buy as a second LFO ?
My requirements are :

1 potmeter for the LFO frequency
1 CV-IN that controls the LFO frequency.
If possible -> EURORACK

Kind regards,
Benjamin