On Thu, 2009-02-19 at 01:28 +0000, serotonic_sound wrote:
> > Zoinky is right that we need to use linear pots. What are all of the
> > markings on your pot's? When you move the pots through their full
> > rotation, does the voltage move smoothly or does it move slowly and
> > then at each end, suddenly jump up or down?
>
> The pots I have are new 10K linear pots and they indeed look/feel
> linear when I measure them on my voltmeter. I think all they say is
> "10K B" somewhere but I don't have them in front of me right now.
The pots on the joystick say 10K B. I suspect they're 10k over a very
short swing though, because obviously they can't turn through a wide
angle.
> When I sent 0 to 5V through the pitch bend (1-5B). The pitch bend
> went from down a fifth to normal at 12 o'clock, but did nothing for
> the rest of the range. This happened with +5 connected, the wiper
> connected to 1-5B, and either ground or -5V to the other side. And it
> did feel "smooth/linear" from far left to 12 o'clock.
Well, as I said, the X and Y pins definitely go from 0 to 4 volts, with
2 volts in the centre.
> What is the range (in musical terms) of the joystick?
Mine swings around 10 semitones.
Gordon