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Test Equipment Anonymous (TEA) group therapy thread
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Robert763:

--- Quote from: Cerebus on July 05, 2022, 12:22:10 pm ---
--- Quote from: Specmaster on July 05, 2022, 09:02:39 am ---Ok, then that video does sort of make some sense, but here is another angle, what would happen with all that natural gas if we don't use it for heating or cooking? It's going to get released into the atmosphere and do what? Build up to become a huge big gas cloud that we are going to be breathing in and then one day a lightening strike ignites it and the entire planet erupts into a huge fireball and incinerates everything and everyone or worse, the planet blows apart and ceases to be a planet any more.  :-// :-// :-//

--- End quote ---

You must be pulling our plonkers. Natural gas that has happily spent millions of years underground is suddenly going to start floating up into the air if we don't use it?

<SNIP>

--- End quote ---

I think the view was tha the gas is a byproduct of oil production and something has to be done with it. If we don't drill it won't be released.
That said we do of course dirill just for gas, the above does not apply to that.
tggzzz:

--- Quote from: Cerebus on July 05, 2022, 01:13:50 pm ---
--- Quote from: tggzzz on July 05, 2022, 12:39:39 pm ---
--- Quote from: Cerebus on July 05, 2022, 12:22:10 pm ---
--- Quote from: Specmaster on July 05, 2022, 09:02:39 am ---Ok, then that video does sort of make some sense, but here is another angle, what would happen with all that natural gas if we don't use it for heating or cooking? It's going to get released into the atmosphere and do what? Build up to become a huge big gas cloud that we are going to be breathing in and then one day a lightening strike ignites it and the entire planet erupts into a huge fireball and incinerates everything and everyone or worse, the planet blows apart and ceases to be a planet any more.  :-// :-// :-//

--- End quote ---

You must be pulling our plonkers. Natural gas that has happily spent millions of years underground is suddenly going to start floating up into the air if we don't use it?

--- End quote ---

Undersea methane clathrate/hydrate? (Note the question mark)

Methane in permafrost.

--- End quote ---

Not exactly stuff that we are currently harvesting/using which was the context, that of stopping using natural gas, nor the unpleasant possibility of there being a catastrophic positive feedback from global warming if we keep using the stuff and manage to release all those putative undersea stores.

--- End quote ---

Undersea clathrates are being extracted, and will be harvested commercially.

Japan says it has successfully extracted natural gas from frozen methane hydrate off its central coast, in a world first. The gas field is about 50km away from Japan's main island, in the Nankai Trough. Researchers say it could provide an alternative energy source for Japan which imports all its energy needs.
https://www.bbc.com/news/business-21752441
Brumby:

--- Quote from: Robert763 on July 04, 2022, 05:11:35 pm ---PAL and NTSC don't have pixels, only lines. Horizontal resolution is only limited by bandwidth.

--- End quote ---

I might be inclined to agree with you if we are speaking of monochrome screens - but PAL and NTSC are colour signal systems.  Things like phosphor pattern and shadow mask come to mind...
Neper:

--- Quote from: Brumby on July 05, 2022, 01:38:15 pm --- Things like phosphor pattern and shadow mask come to mind...

--- End quote ---

Quite so. I was beginning to wonder when someone would eventually come up with it.
mnementh:

--- Quote from: m k on July 05, 2022, 10:02:28 am ---Back to the PAL.
I measured 54622D visible screen area from online picture and got exactly 5:4.
Is that correct?
Pictured knobs were round.
Vertical resolution was also sort of HD compared to 54600B but picture was JPG and not huge.

@mnem, did you measure your machine's H-sync, what was it's frequency?
From online pictures I'd guess that resolution is double and double compared to old model.
True double from that old schematics would be 24720Hz * 2, pretty much.

Back to the monitor.
Single color CRT doesn't need any rasters, if not for picture enhancement purposes.
Some older 546xx model online pictures have clearly straight edged pixels but some other ones are far from it.
So no raster.

Many kinds of CRT glow properties were also available.
So even if video monitor can be tuned to accept 546xx signal maybe its CRT internals are not suitable.
Resolution per se is not a problem.

Computer world had MDA and HGC but both are still under 20kHz horizontally.
MCGA was also available once, it is vertically like CGA/VGA.

The main issue with video monitor is interlace and its process.
There deflection goes from top to bottom twice and second round must be informed somehow.
If that then is controlled by a chip it may not like that half picture just continue continuing.
Vertical size is not usually a problem, usually it can be trimmed out of proportion.

With high resolution monitor its resolution can be an issue though.
There vertical pixel count is meant to be high and less of it can make a sparse picture.
There it can also go so that one line is missing but third is not, that is also what can be expected when resolution of signal and resolution of LCD are not buddies.

E,
H -> V

--- End quote ---
Yeah, 625 line PAL is interlaced; I was thinking that when we were talking before.  :-+

That's another reason I decided to put a pin in this project; I'm waiting on the outcome of this eBay dispute. If I'm not keeping this turd, I think I'd much rather spend the time and brain power figuring out what went wrong with my fuckeroo UTG962E. And playing with my brand-new LeSiglent T3DSO2102.  :-DD

mnem
Never any shortage of things a tinkerdwagon needs to do...
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