9 Nov
2012
9 Nov
'12
1:32 p.m.
Color CRT monitors have 3 guns (red, blue, and green) but a mono monitor has
only 1 gun. So even if you used filters to "fool" yourself into thinking
color, it can't actually be color, because there is only 1 gun!
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
(830)792-3400 phone (830)792-3404 fax
AOL IM elcpls
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Tony Duell
Sent: Friday, November 09, 2012 1:50 PM
To: cctalk at classiccmp.org
Subject: Re: Networking a Macintosh SE/30
\begin{pedant}
That's no _A_ B&W CRT. It's 3 of them
\end{pedant}
I suppsoe you could divde the screen of a single CRT into 3 sections. Put
diffent filters over each scetion, and then combine them into a single image
usign the 'reverse beamsplitter'. That's _A- B&W CRT displaying a colour
image.
> A B/W CRT can't display color.
On
Thu, 8 Nov 2012, Tony Duell wrote:
Not even with a rotating disk of colour filters
in front of it? (CBS
system???)
Or three B&W CRTs, each with it's own filter, and a "beam-splitter"
(reversed to combine) in a projection system (~1970
projection TV)
Rhater later than that over here. I remember such sets (back projection onto
a large-ish scren) in the 1990s here.
-tony
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