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CRT monitor query: Relationship between video input bandwidth and refresh rate/resolution settings p

G

Gene E. Bloch

Well it was a worthy try. I just gave your suggestion a try, but to no avail
(at least to no noticeable avail). Seems the only CRT related option here is
to obtain a monitor capable of, both, at least 1024 x 768 (although my
preference would be 1280 x1024) resolution, @ 120 Hz (give or take) refresh
rate, simultaneously. So far it appears that monitor models on the market
that match (or exceed) this capability are far and few between and therefore
not likely to be found in a local vendor selling CRT monitors at good-value
prices.


Well the mu-metal option is not all that outrageous really. It's just that
(1) it would be strictly utilitarian (i.e not cool to look at) and (2) for
about the same investment I can buy a higher performance CRT monitor (through
one of a handful of online vendors I've just found) that will provide the
high refresh rate that will also do the trick here, whilst enjoy the luxury
of the additional features and other (if you will) 'thoughtful touches' that
come with a CRT monitor in that price range. For example: the 22" (20"
viewable) Iiyama HM204DT, which sports a video input bandwidth of 390 MHz
and will handily display 1280 x 1024 at a solid 133 Hz... Its MSRP is $699.
And from what I can discern it is (to be brief) 'loaded'! Actually the more I
think about it the more I'm inclined to just submit my credit card number and
buy it right now. But such impulse buying is a weakness of mine that I must
try to hold myself back from. So I'm going to wait until my 'infatuation'
with the idea wears off a little so I can possibly weigh the decision more
rationally and objectively. <g>

Ken

As you agreed, reorientation was worth a try. Too bad it didn't work
:-(

Here's a new idea: get one of those desks where the monitor sits
underneath pointing up. I bet that's an orientation you haven't tried
yet!

Naturally, the above is no more serious than my mu-metal suggestion.
OK, a variation on mu-metal just occurred to me: get a window screen of
mu-metal, to protect you agains West Nile Virus while simlutaneously
preventing your monitor picture from wiggling, all the while saving
weight.

Sorry, just wasting bandwidth with impractical whimsy.

As for credit card fever, as a fellow sufferer, I hear your implicit
cry for help.

Gotta go now, there are more things to buy :)

Gino
 
M

Michael A. Terrell

Gene E. Bloch said:
Here's a new idea: get one of those desks where the monitor sits
underneath pointing up. I bet that's an orientation you haven't tried
yet!


I have used those at the local library, and they stink. You are in
an uncomfortable position, leaning over to look at the monitor as you
type. they might as well hang it right over your head, from the
ceiling. It couldn't be an more uncomfortable.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
G

Gene E. Bloch

I have used those at the local library, and they stink. You are in
an uncomfortable position, leaning over to look at the monitor as you
type. they might as well hang it right over your head, from the
ceiling. It couldn't be an more uncomfortable.

This would have been a consideration if I had meant it - and Ken had
taken it - seriously :)

I do wish I had a useful idea for Ken Moiarty's problem, though.

Gino
 
M

Michael A. Terrell

Gene E. Bloch said:
This would have been a consideration if I had meant it - and Ken had
taken it - seriously :)

I do wish I had a useful idea for Ken Moiarty's problem, though.


I didn't want someone who hand never seen one to think it was a good
idea. After all, it was posted to the group, as well. ;-)


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
G

Gene E. Bloch

I didn't want someone who hand never seen one to think it was a good
idea. After all, it was posted to the group, as well. ;-)

OK, I appreciate and concur with your motivation! You just taught me
something.

Just to carp a little, for fun, not seriously - I note that the
newscasters on the program I watch have such monitors. Obviously their
requirements are completely different, since they need to be visible,
and it isn't like they are viewing and typing on an eight-hour shift.

Gino
 
M

Michael A. Terrell

Gene E. Bloch said:
OK, I appreciate and concur with your motivation! You just taught me
something.

Just to carp a little, for fun, not seriously - I note that the
newscasters on the program I watch have such monitors. Obviously their
requirements are completely different, since they need to be visible,
and it isn't like they are viewing and typing on an eight-hour shift.


They are looking at video cues from the control room, and reading
scripts from their teleprompters which only display a few words at a
time in a very large font, on standard NTSC video monitors. They are
too vain to wear glasses so they can't see the ones they used to mount
on the studio cameras. BTW, I'm a former YV broadcast engineer, and I
know all their tricks. ;-)


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
M

Michael A. Terrell

Gene E. Bloch said:
OK, I appreciate and concur with your motivation! You just taught me
something.

Just to carp a little, for fun, not seriously - I note that the
newscasters on the program I watch have such monitors. Obviously their
requirements are completely different, since they need to be visible,
and it isn't like they are viewing and typing on an eight-hour shift.


They are looking at video cues from the control room, and reading
scripts from their teleprompters which only display a few words at a
time in a very large font, on standard NTSC video monitors. They are
too vain to wear glasses so they can't see the ones they used to mount
on the studio cameras. BTW, I'm a former TV broadcast engineer, and I
know all their tricks. ;-)


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
G

Gene E. Bloch

They are looking at video cues from the control room, and reading
scripts from their teleprompters which only display a few words at a
time in a very large font, on standard NTSC video monitors. They are
too vain to wear glasses so they can't see the ones they used to mount
on the studio cameras. BTW, I'm a former TV broadcast engineer, and I
know all their tricks. ;-)

When I read your reply, I saw that my post was a bit ambiguous...

When I said "they need to be visible", I meant that the reporters had
to be visible to the audience - tho' sometimes I wish they weren't :)

One of my exercises - especially when the story is dull - is to watch
the newscasters' eyes for that tiny tell-tale wiggle as they read the
Teleprompter. (Jeez - I need to get a life!)

Gino
 
M

Michael A. Terrell

Gene E. Bloch said:
When I read your reply, I saw that my post was a bit ambiguous...

When I said "they need to be visible", I meant that the reporters had
to be visible to the audience - tho' sometimes I wish they weren't :)

One of my exercises - especially when the story is dull - is to watch
the newscasters' eyes for that tiny tell-tale wiggle as they read the
Teleprompter. (Jeez - I need to get a life!)


Or stop the telepromter for a couple seconds, then double the speed
so that they have to try to read fast and remember the story long enough
to tell it. ;-)



When I was working at a military TV station in the early '70s the
"Talent" wouldn't stay in their seats when I went to an actuality. They
were never in a hurry to get back to their seats and it made my
switching look sloppy. I got tired of it so I rewired their off air
speakers and video monitors. They were standing in front of the news
desk shadow boxing about half way through an actuality when I turned off
their audio monitors. When they looked up and saw themselves on the
off air video monitors they freaked and ran back to their chairs. The
next time I punched up the off air feed from another TV station, in the
middle of a boring local fishing show to keep them guessing. They told
me that they were going to complain to the station manager. I laughed
and told them that from now on, I was not waiting for them to get ready,
that if they screwed up I was going to go to a slide that said, "Please
pardon the morons on your screen". ;-)


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
F

FLY135

Ken said:
Hi, I'm trying to search the web for 19" to 22" CRT monitors on the market
which provide the *highest refresh rates per a certain range of resolutions
(e.g. starting at 1024 x 768 thru to 1600 x 1200). In other words, I'm
looking for monitor product specs that show a list of resolutions and their
corresponding maximum refresh rates as would be presented in a table. This
is hard to tailor a Google search for.

95Khz horz freq will get you about 1600x1200@72Hz. Bandwidth is a
measurement of the freq response of the circuitry. It is only a rough
estimate of the capability of the monitor in terms of sharpness and
ability to render detail. Probably only remotely reliable as an
indicator of performance. And I doubt that it includes the sharpness
characteristics of the tube.
 
B

Bill's News

Gene E. Bloch wrote:

Early iterations of the Hazeltine 2000 & its forebears (early 1970's?)
used a mu metal shield around the yoke. In their case, to protect
nearby equipment from the RF they emitted.
 
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