scopes [was: how to troubleshoot? ...]

[Byron G. Jacquot]

>Let's not forget the most important use of the Z input... playing video games!
>Old "vector" or "XY" games like Asteroids, Battlezone and the like are 
>basically just big O-scopes monitorwise... draw the image, shut off the Z for 
>a second, redraw the next image.  If you turn the brightness all the way up 
>you can watch the beam drawing EVERYTHING... it's really cool (and bad for 
>your monitor ;-)... oh, and if your monitor is out, you can always play your 
>games on yer scope....
>
>sorry if I'm a bit OT...

And a little bit to reign this back to the synth-DIY camp:

There's a nice discussion of vector display design in Hal Chamberlin's
Musical Applications Of Microprocessors.  Uses some DACs and slewing
circuitry to make an automated "line drawer" module (with X, Y and Z
outputs, of course!).

It's ertainly interesting to see what some familiar circuits can do in other
situations.

Byron Jacquot