[sdiy] Adding HPF Knob

[Mattias Rickardsson]

Pot between 0 V and 10 V, wiper to CV input.
Good luck! :-)

/mr
Den 23 okt. 2015 11:05 fm skrev "punkdISCO" <forums at punkdisco.co.uk>:

> Hi
>
> Im looking at schematics to try and add a HPF knob to a Yamaha SY1.  Its
> all nice and easy: the HPF cutoff input on the PCB takes 0-10v (so adding a
> socket would be trivial) and there are a few PCB points that provide a 10v
> source.
>
> Question: to add a knob to control the HPF cutoff, is it simply a case of
> using an appropriate variable resistor:  10v -> VR -> HPF?  Would this VR
> then sweep the 10v input from 0v to 10v output?  Im guessing it might not
> be this simple  :(
>
> Any pointers will be very appreciated..
>
> Thanks,
>
> Paul
> London
> www.punkdisco.co.uk
>
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