What's that black dust in monitors?

[Rod Speed]

No one claimed it was simply dust.

Obvious lie. Harry did just that.

Pity it aint black in that situation, most obviously
with what certainly ends up on the front glass
surface of the tube and in those ESD air 'purifiers'

It is soot

Soorree, nothing to burn it inside a monitor.

the residue of burnt air borne particles.

Soorree, nothing to burn it inside a monitor.

And you dont get that black soot inside an electrical
heater where there is something to burn the dust.

 

[Don Klipstein]

Most monitors are non forced air cooled devices. That is the topic.

Most PCs are forced air devices, and that is an entirely different
subject.

Particulate carried by forced air IMPACTS on surfaces. If said
surfaces have moisture, and or tars from cigarettes on them, then
particulate is going to stick.

Natural/unforced convection will also make sticky particles stick onto
surfaces. Less than with forced air, but it does happen!

- Don Klipstein ([email protected])

 

[Don Klipstein]

Doesnt explain why its black soot.

You certainly get the effect you are talking about on the front
face glass of the monitor and TVs, but its just dust colored.

Not that I want to be caught agreeing with DarkMatter on anything, but I
have both seen and heard of enough black dust on TV/monitor faces. Even
dust with the odor of that accumulating in the flyback transformer area.
My hypothesis is greasy/stick/tarry particles, maybe with a thin coating
of soot or other fine carbon particles.

And conductive particles can have a net charge as well as nonconductive
ones.
My suspicion is that some sort of black dust particle, probably mostly
made of some sort of grease or tar, has a tendency to be charged one way
or another and be attracted to TVs, monitors, etc.

- Don Klipstein ([email protected])

 

[Don Klipstein]

Easy to claim. Have fun explaining why it
aint where the airflow is inside a monitor.

Higher airflow may keep the particles from sticking! I see this dust
normally accumulating in high electric field areas that are not subject to
airflow from fans or the like.

- Don Klipstein ([email protected])

 

[Don Klipstein]

Duh, fuckwit.


Pigs arse it is.

I have plenty of experience saying it is electrostatically influenced!

Taint what moves the air in a monitor.

AND that black stuff is nothing like the
dust that ALSO ends up in the monitor.

The dust in question sure accumulates where airflow speed is low!
Besides, the attracting force for the dust is for the dust in question and
not for air!

- Don Klipstein ([email protected])

 

[Phil Allison]

Have fun explaining why you dont get that
on the HT lead from the FBT to the tube.

** No need to explain the Robot's false assertion.

Or with Tesla coils either.

** Not even faintly similar situation.




........... Phil

 

[Phil Allison]

You only see that jet black crud in a monitor adjacent to the FBT.

** Bullshit - it gets all over the back of the CRT, the ultor lead
and the insides of the case.

The Robot is not even familiar with the issue.




............ Phil

 

[Rod Speed]

Rod Speed wrote

I have seen the "sooty" black dust with that "TV-electrical
odor" in fluorescent fixtures in a restaurant.

I dont get that myself on the flourescent fixture in my kitchen.

All there is on that is some brown fatty crud on the upward facing
surface, and I know that thats the fat in the air from cooking steaks.
I cook them with the griller as hot as I can get it, and you do get
a bit of a grey smoke haze from the burning fat in the air.

Whats on the flourescent fixture is nothing like the
black soot you get on the inside surface of the monitor
case adjacent to the FTB and on the FBT itself.

My hypothesis is oxidized and maybe dark-dirt-coated
particles of grease/vegetable-oil/etc., maybe oxidized.

Yes, thats one description of what I do get on the upper
surface of the flourescent fixture in the kitchen, but thats
nothing like what we're discussing in monitors.

Maybe smoke particles of some kind, which
are sometimes greasy/tarry in nature.

Yep, but thats greasy and nothing like jet black.

And these sootier appearing particles seem to be attracted to
TVs and some fluorescent fixtures, as opposed to other forms
of dust not being so attracted to high voltage electric things.

Dunno, I do get quite a bit of dust on all the front surfaces
of all the monitors and TVs, but its just dust colored, not
the jet black soot you get inside the monitor.

I have known black dust to accumulate on TV screen surfaces
sometimes, and larger quantities of this dust when wiped with a
paper towel often have the "black-dust-from-the-inside-of-a-TV" odor.

Mine isnt anything like jet black. But then its not a black
soil area, the dirt around here is very brown, almost reddish.

 

[Rod Speed]

Bullshit - it gets all over the back of the CRT,
the ultor lead and the insides of the case.

Wrong.

 

[Rod Speed]

Not that I want to be caught agreeing with DarkMatter on anything, but
I have both seen and heard of enough black dust on TV/monitor faces.

Thats not the jet black soot you get on the inside of the case adjacent
to the FTB with what you do get on the outside glass tube surface.

Presumably you get that in black soil areas where the dust is very dark.

The dust around here is reddish brown and thats what
builds up on the outside front surface of the tube, due to
electrostatic attraction. I still get that jet black soot on
the inside of the case near the FBT, so that cant just be dust.

Even dust with the odor of that accumulating in the flyback
transformer area. My hypothesis is greasy/stick/tarry particles,

The black soot on the inside of the monitor case near the FBT
isnt sticky/tarry/greasy at all, its completely dry to the touch.

So is the dust that gets electrostatically attracted
to the front surface of the tube, just a completely
different color and coarser/more gritty to the feel.

maybe with a thin coating of soot or other fine carbon particles.

And conductive particles can have a net
charge as well as nonconductive ones.
Sure.

My suspicion is that some sort of black dust particle,

Cant be around here where the dust aint black.

probably mostly made of some sort of grease or tar,

Cant be that either, it isnt greasy or tarry.

has a tendency to be charged one way or
another and be attracted to TVs, monitors, etc.

Doesnt explain why is noticeably concentrated
on the inside case surface adjacent to the FTB.

 

[Rod Speed]

Rod Speed wrote

I have plenty of experience saying it is electrostatically influenced!

Not the convection airflow it isnt.

The dust in question sure accumulates where airflow speed is low!

Yes, but the airflow speed isnt just low adjacent to the FBT.

You dont get it on the opposing inside case
surface where the airflow is just as low.

Besides, the attracting force for the dust
is for the dust in question and not for air!

Yes, thats what I was saying right at the top. There
is no electrostatic effect on the convection airflow.

 

[Rod Speed]

Higher airflow may keep the particles from sticking!

Doesnt explain why you dont get those particles
sticking on the opposite side of the case with the
same airflow as the area adjacent to the FBT.

I see this dust normally accumulating in high electric field
areas that are not subject to airflow from fans or the like.

It isnt dust. Its a completely different color to dust here. Its soot.

 

[Phil Allison]

Wrong.

** It does, every TV and monitor tech has had to laboriously clean it off
many times.

You have obviously never seen it and are discussing a DIFFERENT
problem.




.............. Phil

 

[DarkMatter]

Dust ends up in PC regardless of moisture and or
tars and is anything like the color of the black stuff in
monitors. So it cant be just dust as some have claimed.

It is dust. It just happens to take on a different color than the
dust accumulations in PCs. Also, there could have been an epoxy
encapsulated device that failed in the unit.

You are irrelevant.

 

[DarkMatter]

Some entirely appropriately named pathetic excuse
for a bullshit artist desperately cowering behind
DarkBrown Matter <[email protected]> wrote

^^^^^^^
This is the kind of baby bullshit that tags you perfectly for the
adolescent twit that you are.

in message news:[email protected]...


Even you should be able to bullshit your way out of
your predicament better than that pathetic effort, child.

I'm sorry, but your pathetic "Don't buy that," is about as retarded
as it gets, considering the well documented effects on smoking in TVs
for decades, boy. You are the child.

Never ever said anything even remotely resembling anything like that.

Yes, you did. I said that it affects lifespan, and you said "Don't
buy that." Sorry asswipe, but facts are facts.

PCs dont generally rely on heat passive
heat dissipation much, so the effect of smoke
or just dust isnt what causes them to fail.

Dumbfuk the discussion is about MONITORS!

You are a fuckwit.

You are an adolescent twit, AND a snake oil salesman. You have the
credibility of a freshly laid turd.

 

[DarkMatter]

Pigs arse it is.

Proof again that you know nothing about electrostatic fields, or how
they act upon "air".

 

[DarkMatter]

Reams of your puerile silly shit any 3 year old
could leave for dead flushed where it belongs.

This adolescent baby bullshit is what I tagged you as a troll wussy
**** with in sci.physics.

Yer lame ass is a putz, and a puke, boy. You be troll.

 

[Phil Allison]

Obvious lie. Harry did just that.

** The word was "some" and who is Harry ???


BTW The stinking Robot is cross-posting his answers to increase the
mess.




............ Phil

 

[DarkMatter]

Have fun explaining why you dont get that
on the HT lead from the FBT to the tube.

Or with Tesla coils either.

Game, set and match.

Yer a fucking idiot. This baby bullshit proves it. "Game set and
match" How fucking childish and lame can you be?

Hey! Retard boy! Yes, YOU! RODDY DIPSHIT!

Monitors are left on for hours on end. Tesla coils are rarely
turned on for more than a few seconds at a time as they are definite
FCC violations, you diphsit FUK!

Game,set, and match, my ass. You want a match, go look at a big
cowpie, then go look in a mirror.

 

[DarkMatter]

And you dont get that black soot inside an electrical
heater where there is something to burn the dust.

Dipshit. Electrical heaters radiate huge amounts of IR and air
convection currents as well. No dust gets anywhere near them.
ELECTRICAL FIELDS are a completely different story, however, you DUMB
****!