28 Dec
2006
28 Dec
'06
8:56 p.m.
Mac portrait displays are presumably similarly difficult to get
replacement
CRTs for, at least without realigning the yoke (I gather that most
CRTs don't
like a change in orientation, although I used to run a Sun colour
display on
Do colour portrait displays exist? The reason I ask is that I wonder if
they use specially designed CRTs. IIRC, the whole point of the 'in line
gun' (PIL) CRT was that the 3 electron gus were in a horizontal line,
so
that only the vertical component of the earth's magnetic field had much
effect on the convergence, and that was relatively constant in a given
area. So if the CRT was set up properly you could move the unit around
without having to do a reconvergence (this was a problem with delta-gun
CRTs which had to be set up in the positionan nnd orientation where
they
were going to be used, but if that was done they give an excellent
picture).
-tony