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From: jsdy@hadron.UUCP (Joseph S. D. Yao)
Newsgroups: net.analog,net.micro
Subject: Re: anyone interface a color X-Y CRT ??
Message-ID: <370@hadron.UUCP>
Date: Fri, 11-Apr-86 21:24:31 EST
Article-I.D.: hadron.370
Posted: Fri Apr 11 21:24:31 1986
Date-Received: Fri, 18-Apr-86 05:22:18 EST
References: <195@sfsup.UUCP>
Reply-To: jsdy@hadron.UUCP (Joseph S. D. Yao)
Distribution: net
Organization: Hadron, Inc., Fairfax, VA
Lines: 28
Keywords: X-Y D-A
Xref: watmath net.analog:783 net.micro:14344
Summary: I've done monochrome.  Here's how ...

In article <195@sfsup.UUCP> jeffj@sfsup.UUCP (J.S.Jonas) writes:
>19 inch high resolution color X-Y display (Wells Gardner)
>separate R,G,B amps
>X horizontal 16 V P-P signal, 0.05 inches/usec
>Y vertical   12 V P-P signal, 0.0375 inch/usec
>Z beam        4 V max brightness, 1.0 V black
>
>	Has anyone used these for anything?

I've used a monochrome (green) one for output displays.  The color,
I guess, can be used to give an added dimension to the display: you
can perceive where 3 different signals have varying intensities in
the field.  Although, having 5 different dimensions (XYRGB), you'd
have to be very careful in your display design.

Off an analog computer, you can make your X, Y, R-Z, G-Z, B-Z (I
assume, although X and Y could also be separate for each colour, I
guess, leaving you to make sure that they track) each be driven off
an individual amp/limiter, +/- the appropriate voltage.  Off a
digital computer, you'll need a set of digital-to-analog converters
of whatever fineness and range you want, though you'll prob'ly want
to put an amp/limiter on the output of them, too.  Your applications
are only as limited as your imagination.  Just be a little tasteful,
please, it's easy to get carried away by the technical wonder of it
all.	;-)
-- 

	Joe Yao		hadron!jsdy@seismo.{CSS.GOV,ARPA,UUCP}