"Bruce Esquibel" wrote in message
...
"Dave Plowman (News)" wrote:

With many CRT sets - IMHO most noticeable with Trinitron
tubes - the red
gun ages more than the others due to being driven harder
than the others.
Resulting in the tint you describe.

Hmm, maybe my memory is going with old age but...

1) The main point with the Trinitron tube was it only had
one gun, thus
providing a better/different picture because there were
fewer color
alignment problems. It used that special shadow mask and
was the first crt
to use rectangle shaped color landings instead of the
standard round hole
delta pattern everyone else used.
(snip)

Sony advertises one gun in the Trinitron because PART of the
gun is in common with the three colors. It still has three
cathodes and heaters however. Just look at the neck of one
sometime. As far as the drive for the individual colors,
that is determined more by the phosphor efficiencies than
the human eye.

David