convert TV/monitor to XYZ monitor

[Robert Donker]

I've done this myself many times, it's a great effect if you get it right.
All TV's are different so I'm not sure you will find sch. What I've done is
open up the back of the TV and identify the YOKE. This is a coil fixture
around the end of the tube. You will easily identify the X and Y axis
connections. These are AC connections. I usually use an old audio amp
(should be at least 20 watts), connect the left and right channels to the X
& Y axis inputs to the yoke. Roll off the bass and crank the treble. As far
as the Z axis (beam modulation) is a lot trickery. Hopefully some one on the
list can help with that part.

-rpD



> -----Original Message-----
From: XinclXsynth-diy at mkv.mh.se [mailto:XinclXsynth-diy at mkv.mh.se]
Sent: Friday, October 06, 20

> 00 12:31 AM
To: synth-diy at node12b53.a2000.nl
Subject: OT: convert TV/monitor to XYZ monitor


Leaving 

> semilurkng mode for awhile and I know this is kind of OT but this

> is were the knowledge is.

> 

> I've done some "oscillographics" bye running to signals from various

> modules into the X and Y of my oscillocope. Synched oscillators and

> ringmodulators can  do wonders.

> Now I want ot expand this to a larger screen and also make it 

> into a XYZ

> setup and my  eyes fell on a computermonitor I have left over.

> 

> Does anyone know of any online schematics or an articel on 

> how to convert a

> teve or monitor to a XYZ-monitor?

> I have some old Elektor articles from 1978 were you  draw 

> oscilloscope like

> curves onto a normal videomonitor but it didn't provide 

> X-control which is

> crucial here.

> The straight CV into  XYZ setup is very lowlevel approach to 

> draw lines

> onto a CRT so maybe I heading the wrong way? Is it perhaps 

> better to try to

> find some modules that draws these line in a normal color-tv 

> video signal.

> It would allow for expanded mixing and interacting with other video

> equipment. But that would quite possibly also include microprocessing,

> framebuffering etc and I'm kind into the analogue thing right now.

> 

http://www.AudioVisualizers.com/ has a lot of info, articles and a few

suggestions on schematics but none of it is what I need right now.



any hints, suggestions, books, articles? I'm all ears.



//Per



"The problem with todays newage music is that there's no evil in it!" - Eno.

__________________________________________________________________________

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