16 Jan
2002
16 Jan
'02
10:44 a.m.
On Jan 16, 17:25, Arlen Michaels wrote:
BTW, does anyone know if there's an internal
adjustment to brighten these
up? It seems that a lot of the surviving NeXT mono screens have gone
quite
dim.
The cathode in the CRT used in the 4000A loses its emission ability over
time. There's nothing you can do about it. The usual techniques for tube
rejuvenation don't seem to work.
The later 4000B monitors use a different tube which doesn't seem to suffer
in the same way.
--
Pete Peter Turnbull
Network Manager
University of York