Jurgen,
did you mount your joystick on a vertical panel in the main cabonet, or in
an auxillary box?
Dave Bradley
Principal Software Engineer
Engineering Animation, Inc.
daveb@... > -----Original Message-----
> From: jhaible [mailto:jhaible@...]
> Sent: Wednesday, April 12, 2000 6:00 PM
> To: motm@egroups.com
> Subject: [motm] Joystick
>
>
>
> > Never mind my last post. The output would only swing from +10
> to 0 volts,
> > and bipolar would probably be more useful. See the attached image for a
> > quick and easy schematic. The opamp type is not critical.
>
> The Joystick module I've built some years ago for my JH-3 system
> has the following features:
>
> CV Output jacks for X and Y, bipolar +/-5V each.
> Two bicolor LEDs for X and Y.
>
> Four VCAs with inputs/outputs connected in "diamond shape"
> with a variety of functions:
>
> (1) Mixing of 4 inputs into one output with 2 modes (see below):
> 2-dimensional crossfading.
> When only to of the 4 inputs are connected, the other ones are
> automatically normalized to the negative (inverted) input signal
> of the adjacent inputs. (Acting as a 2-dimensional reversible
> attenuator)
>
> (2) Distributing one input to 4 outputs (2-dimensional or "quad"
> panning)
> Use this as "Azimuth coordinator" for a real Quad system, or
> connect two of the outputs to the effect send of a true stereo
> reverb in an ordinary stereo system.
>
> (3) "Mode" switch, applies to both (1) and (2):
> a) normal panning / crossfade: When joystick is in center,
> result is a mix of 50% X and 50% Y.
> b) center zero: When joystick is in center, there is no output
> signal at all. This means independent selection of 4 different
> sources, for instance.
>
> I don't remember circuit details, but I think I found a way to do it all
> with just a SSM2024 and 2p2t switches - kind of matrix connection.
>
> JH.
>
>
>
>
>
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