Keyboard circuit (was Stretch tuning a resistor string)

[Hugo Haesaert]

Hi Juergen n All !

External cv-in on the Xpander is indeed quantised before being fed to 
the rest of the synth .  No grand sweeps here :)

Also no easy way to use this ref in a normal VC osc, multipliers 
would introduce extra compensation and other errors .  That's the 
reason why the cem3340-3345 have them on chip ;-)

Cheers .


Keep 'em oscillating :)


Hugo
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