On 21/06/2021 17:10, Antonio Carlini wrote:
On 21/06/2021 15:39, Paul Koning wrote:
You're thinking of the VT200, which came in three colors, although at
DEC fortunately they never inflicted green on us :-). But all the
earlier DEC video terminals (VT05, VT50/52/61t/62, VT20, VT71) were
white. The only exception I can think of is the GT40, probably
because that one benefits from having fairly long persistence which
was available in green phosphor but not in white.
The User Guide doesn't say and I don't have an IPB I can find. I do
remember the VT100s in the computer room at Uni being green and the
VT52 clones (Dataram?) being white. But that's a while ago so maybe my
wetware is wrong. If and when I can get to where I think my VT100 is I
can look at powering it up. Powering it up may take much longer than
getting to it though :-)
My VT220 is (or was, it's been a while ...) green phosphor and my
VT420 is amber ... I like both.
I found the IPB on bitsavers and that lists the P4 phosphor and a later
CRT with the P40 phosphor. I think both of those are white.
I did find one seemingly untouched image of a VT100 with green text:
https://vistapointe.net/cliparts/getsecond. That does appear to be a
VT100 (not a VT102/VT103 etc) and is green.
I did find many more white phosphor pictures than green (and no amber at
all).
Antonio
--
Antonio Carlini
anto...@acarlini.com
