Re(2): convert TV/monitor to XYZ monitor

[Per Mattsson]

harrybissell at prodigy.net skriver:
>If you have an OLD TV with a pot for the "brightness" it might be possible
>to use a vactrol or similar to control the Z axis... response time will be a

Well, since the intensity of normal TV videosignal is 0 to 0.7 volt I'll
try o make a little gain/bias stage for each of R G and B. The ideal for me
would be 0-1 volt control over each primary colour. Since I probably will
use a computermonitor I already have separate RGB inputs, I don't know the
exact voltages though. Perhaps our Apple representative can dig up
schematics. It just might be a matter of adjusting inputs inside the
monitor.

With some analog computation magic I could perhaps convert Hue Saturation
and Intensity into RGB makeing it easier and more useful to set a certain
colour. But that's probably best to do as a module just like any OSC och
LFO.
Perhaps it's even possible to make a preset module that converts X and Y
geometrics into polar geometrics? That would be 'radius' and is it 'arc' in
english?  The obvious would be to make circles but also triangles, squares,
stars and spirals should be easy to do. Hmm, maybe it should be dedicated
CV-able patterngenerator?


Thanks to all who has replied!

//Per


"- It's ok kids, you tried your best and you failed.  The lession is:
never try."
                                                            * Homer  J.
Simpson *
__________________________________________________________________________
Per Mattsson                               Per.Mattsson at mkv.mh.se
Lecturer and Computersystems manager       Phone: +46-60-148825
Department of Media and Communication      GSM: +46-70-6524567
Mid Sweden University, Sundsvall, Sweden   Fax:   +46-10-148934