This is the perfect weekend if you suffer dementia

[Judith Latham]

Not only will you be meeting new friends, but you can also hide your
own Easter eggs. Enjoy

[Graham]

On 2023-04-06 2:17 p.m., Judith Latham wrote:
> Not only will you be meeting new friends, but you can also hide your
> own Easter eggs. Enjoy
>

My neighbour has just died of/with dementia.
Thank you for your tasteless post.

[%]

That joke is older than the dinosaur shit between
your teeth, Graham.

[Ed P]

Also cross posted to invite more idiots.

[Dave Smith]

Over the years I came to realize that the main reason people
intentionally cross post is to make asses of themselves in multiple
groups simultaneously. I confess to having accidentally cross posted in
the past. I guess I was rash and had not realized that the message to
which I was responding had been cross posted. I tried to me more
careful. Then I started filtering cross posted crap. Curiously, it seems
to be the same set of groups that the crap is being posted to.

[%]

Dave Smith wrote:
> Over the years
>
zzzzzzzzzz

[Bruce]

On Thu, 6 Apr 2023 17:35:46 -0400, Dave Smith
<adavid...@sympatico.ca> wrote:

>On 2023-04-06 5:19 p.m., Ed P wrote:
>> On 4/6/2023 4:48 PM, Graham wrote:
>>> On 2023-04-06 2:17 p.m., Judith Latham wrote:
>>>> Not only will you be meeting new friends, but you can also hide your
>>>> own Easter eggs. Enjoy
>>>>
>>> My neighbour has just died of/with dementia.
>>> Thank you for your tasteless post.
>>
>>
>> Also cross posted to invite more idiots.
>
>
>Over the years I came to realize that the main reason people
>intentionally cross post is to make asses of themselves in multiple
>groups simultaneously.

That took you years to come up with?

[Bryan Simmons]

I wish that John Kuthe would die of dementia.
Instead, he keeps living with it.

--Bryan

[dsi1]

I remember when we bought our first big 27" TV. What a proud and glorious day that was! It was an RCA Dimensia TV. Back in those days, people didn't die from it. It pretty much broke after a short while. As we all know, pride cometh before the fall.

https://en.wikipedia.org/wiki/RCA_Dimensia

[%]

Recall your dad tapping the tubes to find the weak one in your
TV, and then going to the drug store to purchase its replacement?

[dsi1]

My dad never opened up the TV. I took a class in television repair. It was like going down a rabbit hole. The more you learned, the more you realized that you don't know how a color TV works. One thing we did was apply a higher than normal voltage to the filament of the CRT. This burnt off deposits and brightened up the picture for a while - if it didn't burn out the tube first, that is.

[Judith Latham]

Doctor, I came to pick up my wife’s results…

- Well… I had a little problem with the results. I accidentally
scrambled them with another patient, we don’t know if she has aids or
alzheimers.

+ What should I do now?

- Leave her in the middle of the forest, if she comes back, don’t fuck
her.

[Sqwertz]

On Thu, 6 Apr 2023 16:19:05 -0700 (PDT), dsi1 wrote:

> One thing we did was apply a higher than normal voltage to
> the filament of the CRT. This burnt off deposits and brightened
> up the picture for a while - if it didn't burn out the tube
> first, that is.

Is that what your Dad told you? You think a CRT is just a big
lightbulb?

You're an idiot. And your family should have died during your
fathers reign.

> The more you learned, the more you realized that you don't know
> how a color TV works.

You said it.

-sw

[Rob H]

Err, why not, as she may not remember it.

[Brian Gaff]

My crystal ball is away at t the moment.
Brian

--

--:
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
bri...@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
"Judith Latham" <judith...@gmx.com> wrote in message
news:hq9u2i57u88i4bsq1...@4ax.com...

[Sam E]

On 4/6/23 15:17, Judith Latham wrote:
> Not only will you be meeting new friends, but you can also hide your
> own Easter eggs. Enjoy

One book, and you'll always have something new to read.

[dsi1]

Looks like you win the rfc village idiot crown. Congrats?

"Brightening an Old CRT
If performing adjustments of the internal background and/or screen controls still results in a dark picture even after a long warmup period (and the controls are having an effect - they are not faulty), the CRT may simply be near the end of its useful life. In the old days of TVs with short lived CRTs, the CRT brightener was a common item (sold in every corner drugstore, it seemed!).
First confirm that the filaments are running at the correct voltage - there could be a marginal connection or bad resistor or capacitor in the filament power supply. Since this is usually derived from the flyback, it may not be possible to measure the (pulsed high frequency) voltage with a DMM but a service manual will probably have a waveform or other test. A visual examination is not a bad way to determine if the filaments are hot enough. They should be a fairly bright orange to yellow color. A dim red or almost dark filament is probably not getting its quota of electrons. It is not be the CRT since all three filaments are wired in parallel and for all three to be defective is very unlikely.

If possible, confirm that the video output levels are correct. For cathode driven CRTs, too high a bias voltage will result in a darker than normal picture.

CRT brighteners are available from parts suppliers like MCM Electronics. Some of these are designed as isolation transformers as well to deal with heater-to-cathode shorts.

You can try a making a brightener. Caution: this may shorten the life of the CRT - possibly quite dramatically (like it will blow in a couple of seconds or minutes). However, if the monitor or TV is otherwise destined for the scrap heap, it is worth a try.

The approach is simple: you are going to increase the voltage to the filaments of the electron guns making them run hotter. Hopefully, just hotter enough to increase the brightness without blowing them out.

Voltage for the CRT filament is usually obtained from a couple of turns on the flyback transformer. Adding an extra turn will increase the voltage and thus the current making the filaments run hotter. This will also shorten the CRT life - perhaps rather drastically. However, if the monitor was headed for the dumpster anyhow, you have nothing to lose. You can just add a turn to an existing winding or make your own separate filament winding as outlined in the section: Providing Isolation for a CRT H-K short.

In some monitors, there is a separate filament supply on the mainboard - this should be obvious once you trace the filament wires from the video driver board). In this case, it still may be possible to increase this output or substitute another supply but a schematic will be required.

There are also commercial CRT rejuvenators that supposedly zap the cathodes of the electron guns. A TV or monitor service center may be able to provide this service, though it is, at best, a short term fix."

https://www.repairfaq.org/sam/crtfaq.htm#crtbrt

[T]

Yuo will remember it when you get AIDS

[GM]

Unca Tojo, you're pretty "brainy" for a guy from a culture that generates its electricity from DRIFTWOOD...

--
GM

[Michael Trew]

On 4/7/2023 16:22, dsi1 wrote:
> On Thursday, April 6, 2023 at 8:18:48 PM UTC-10, Sqwertz wrote:
>> On Thu, 6 Apr 2023 16:19:05 -0700 (PDT), dsi1 wrote:
>>
>>> One thing we did was apply a higher than normal voltage to the
>>> filament of the CRT. This burnt off deposits and brightened up
>>> the picture for a while - if it didn't burn out the tube first,
>>> that is.
>> Is that what your Dad told you? You think a CRT is just a big
>> lightbulb?
>>
>> You're an idiot. And your family should have died during your
>> fathers reign.
>>> The more you learned, the more you realized that you don't know
>>> how a color TV works.
>> You said it.
>>
>> -sw
>
> Looks like you win the rfc village idiot crown. Congrats?
>
> "Brightening an Old CRT If performing adjustments of the internal
> background and/or screen controls still results in a dark picture
> even after a long warmup period (and the controls are having an
> effect - they are not faulty), the CRT may simply be near the end of
> its useful life. In the old days of TVs with short lived CRTs, the
> CRT brightener was a common item (sold in every corner drugstore, it
> seemed!).

I have one of those CRT brighteners. I haven't messed with old vacuum
tube TVs or radios in a while, but I still have too many of them around.
Somewhere, I have a voltage variac, a tube tester, isolation
transformer, bin of resistors/capacitors, and a number of other odds and
ends.

[Michael Trew]

On 4/6/2023 17:19, Ed P wrote:
> On 4/6/2023 4:48 PM, Graham wrote:

>> On 2023-04-06 2:17 p.m., Judith Troll wrote:
>>> Not only will you be meeting new friends, but you can also hide your
>>> own Easter eggs. Enjoy
>>>
>> My neighbour has just died of/with dementia.
>> Thank you for your tasteless post.
>
> Also cross posted to invite more idiots.

That "Judith" character is a troll; I learned that within "her" first
few posts. "She" just tries to stir up anti-semantic remarks. Just
filter the troll out.

[GM]

Um, "anti-*semantic* remarks", Michael...???

B-)

--
GM

[Judith Latham]

He was right, more idiots were invited. Witness your troll, Trew

[dsi1]

Vacuum tubes, including picture tubes, did indeed evolve from the light bulb. They both heat up a filament in a vacuum. Instead of producing light, the electron tube heats up one or more filaments to produce a stream of electrons to do useful things. The electron tube and incandescent light bulb made modern life possible but they're pretty much in the scrap heap of technology these days. Time marches on!

[Thomas Joseph]

Ed P wrote:

Graham wrote:
udith Latham wrote:

> >> Not only will you be meeting new friends, but you can also hide your
> >> own Easter eggs. Enjoy


> > My neighbour has just died of/with dementia.
> > Thank you for your tasteless post.


> Also cross posted to invite more idiots.

Like you, Ed?

[Thomas Joseph]

Bryan Simmons wrote:

> I wish that John Kuthe would die of dementia.
> Instead, he keeps living with it.

I have wished death on people. Not many though. I know
what you mean, how people who are supposed to be dead
just keep on ticking. I feel the same about a few relatives
and friends with cancer. I'm talking ten years or more.
I don't wish death on these people, but when I hear them
talking about 'their' disease as if it's their own personal
pet I do sometimes find myself asking, "When are these
people going to die?"

[Dave Smith]

Perhaps the technology for making them had similar roots but everything
else about them is different. Incandescent light bulbs are pretty simple
devices that have electricity flowing through a filament and the
resistance transforms the electrical energy to heat and light. They can
be vacuums or be filled with an inert gas. TV bulbs are different.
There are diodes and triodes that control the flow of electricity. A
Cathode ray tube is one or more electon guns that emit electon that are
manipulated to pass back and forth and down across a phosphorous screen
to create an image.

[dsi1]

Indeed, light bulbs and vacuum tubes had similar roots but their function is completely different.

[Ed P]

I do my share.