Said "Société Momentanée pour le Démantèlement" might be something like that, but also might be a company to handle the physical teardown ("Démantèlement" would point to this).
Spotted this puppy Tek DPO 7254 in a corner at work collecting dust, wih a label "do not use need service".
Asked around: "Don't know, needs repair and Tek support do not reply anymore..."
Me: "When you will scrap it?"
reply: "will see"
May the luck be with you!
Here (my department @work) such a thing would be sitting in the corner forever, because one cannot decide to scrap it, even if it's unserviceable. Maybe in some 10yrs you'd get a lucky moment. Other departments would have thrown it into the scrap box once it's finally written off, just be there at the right moment.
A swept function generator and a scope (triggered by sweep start) was the usual way to take frequency response plots. Engineer 2 knows how to do that. Once I did this here (@work), others were just baffled ...
In other news...
The control board in my window A/C unit took a giant shit.It keeps cycling between modes all by itself and beeping. And won't respond to any inputs. It's 10 years old and been driven hard so I guess I can't be surprised. And luckily this happen at the end of the cooling season. I'm tempted to try to figure out how to pull the control board but it probably won't be worth the effort. I guess it's headed for re-cycle and I'll purchase a new one come next Spring.
I bet that is because of failing caps, go on open it up and take a squiz inside, it really could be that simple.
Yep, could be. The biggest issue is figuring out how to get it apart without destroying it. It's NOT like the unit in Dave's video.
Yeah, another consumer gadget designed to be assembled with the fewest human hands possible, and if that means you can't get it apart to fix it then BONUS!!!: Built-in turnover!!!
mnem
Well I looked it over and it appears the only way to gain access to the electronics board is to pull the entire cooling unit out of the cabinet. Under normal circumstances that would be no issue. But it's heavy, very heavy. I won't risk it and injure myself.
That consumer gadget as you call it lasted 10 years under a harsh environment of heat, cool, and excess moisture. An environment where you wouldn't last 5 minutes. It owes me nothing. It more than paid for itself.
Usually rebranding is red flag that an organisation has lost its way and the canopy management doesn't know how to fix that.
A swept function generator and a scope (triggered by sweep start) was the usual way to take frequency response plots. Engineer 2 knows how to do that. Once I did this here (@work), others were just baffled ...
The trick with such scalar network analysers is to get the familiar double-log Bode plot with good dynamic range.
No doubt "the others" would be equally baffled by the noise-source plus inverse FFT technique
In other news...
The control board in my window A/C unit took a giant shit.It keeps cycling between modes all by itself and beeping. And won't respond to any inputs. It's 10 years old and been driven hard so I guess I can't be surprised. And luckily this happen at the end of the cooling season. I'm tempted to try to figure out how to pull the control board but it probably won't be worth the effort. I guess it's headed for re-cycle and I'll purchase a new one come next Spring.
I bet that is because of failing caps, go on open it up and take a squiz inside, it really could be that simple.
Yep, could be. The biggest issue is figuring out how to get it apart without destroying it. It's NOT like the unit in Dave's video.
Yeah, another consumer gadget designed to be assembled with the fewest human hands possible, and if that means you can't get it apart to fix it then BONUS!!!: Built-in turnover!!!
mnem
Well I looked it over and it appears the only way to gain access to the electronics board is to pull the entire cooling unit out of the cabinet. Under normal circumstances that would be no issue. But it's heavy, very heavy. I won't risk it and injure myself.
That consumer gadget as you call it lasted 10 years under a harsh environment of heat, cool, and excess moisture. An environment where you wouldn't last 5 minutes. It owes me nothing. It more than paid for itself.
In other news...
The control board in my window A/C unit took a giant shit.It keeps cycling between modes all by itself and beeping. And won't respond to any inputs. It's 10 years old and been driven hard so I guess I can't be surprised. And luckily this happen at the end of the cooling season. I'm tempted to try to figure out how to pull the control board but it probably won't be worth the effort. I guess it's headed for re-cycle and I'll purchase a new one come next Spring.
I bet that is because of failing caps, go on open it up and take a squiz inside, it really could be that simple.
Yep, could be. The biggest issue is figuring out how to get it apart without destroying it. It's NOT like the unit in Dave's video.
Yeah, another consumer gadget designed to be assembled with the fewest human hands possible, and if that means you can't get it apart to fix it then BONUS!!!: Built-in turnover!!!
mnem
Well I looked it over and it appears the only way to gain access to the electronics board is to pull the entire cooling unit out of the cabinet. Under normal circumstances that would be no issue. But it's heavy, very heavy. I won't risk it and injure myself.
That consumer gadget as you call it lasted 10 years under a harsh environment of heat, cool, and excess moisture. An environment where you wouldn't last 5 minutes. It owes me nothing. It more than paid for itself.
Get a modern one with a variable speed compressor, AKA "Inverter" and it will pay for itself in power savings. Als less insrusve becaue it runs aall the time at the power required rather than baning on and off at full power.
I don't know if window units are available in that configuration but it is something worth investigating.
I have a surplus TDS 210 with the comms module... it's in nice condition apart from having a replacement 3DP power button and comes in a hard carry case. PM me if you are interested.
Said "Société Momentanée pour le Démantèlement" might be something like that, but also might be a company to handle the physical teardown ("Démantèlement" would point to this).
That's exactly what it is. Arcelor have closed their steel mill in Liège, mainly consisting of two blast furnace plants, a coking plant, an oxygen steel plant and a hot rolling mill. The Société Momentanée ... is a joint venture to deconstruct and depollute these sites, a job of a miserly 600 million euros.
This thread diversion is quite funny.
I buy stuff to play with it. Play is an essential part of life and the generation of culture.
Tautech has mastered the art of getting to play with stuff and make a living out of it. I salute himI buy old stuff simply because I cannot afford anything else. I seriously doubt there is anyone here who, if money was not a problem, would not prefer to have a beautiful array of nice shiny new gear as their goto equipment when repairing / building / forward engineering something. But even then, that new equipment would still contain far more sophisticated capabilities than most of us would ever need or even know how to use. Someone like Shahriar from The Signal Path would be more likely to make far better use of those capabilities, but he is in the minority.
Stealing tggzz's sig line on the forum, it's sometimes more fun to do stuff with less.
If I was a professional and doing forward engineering I wouldn't go balls deep on kit either. It's mostly not necessary. I've seen a fine example of this before. Engineer 1 goes on strike until his PO is approved for a £3k bit of gear. Engineer 2 works out how to cobble something together in a Hammond box to make a good enough measurement for now. I am engineer 2
Spot the test gear floating inside the Saturn V IU under test. We can do better than that with a junk scope these days.
Incidentally if I could manipulate space and time I'd be in that photo
*sigh*
Shaving lessons for my son tonight. No way in hell I am old enough to have a kid that age.
mnem
"It's not the years, baby. It's the mileage." ~mom
But I bet you'll take all of those butt-uglee little hp 621xA power supplies you can get.
mnem
*recovery mode*
In other news...
The control board in my window A/C unit took a giant shit.It keeps cycling between modes all by itself and beeping. And won't respond to any inputs. It's 10 years old and been driven hard so I guess I can't be surprised. And luckily this happen at the end of the cooling season. I'm tempted to try to figure out how to pull the control board but it probably won't be worth the effort. I guess it's headed for re-cycle and I'll purchase a new one come next Spring.
Might be just one stuck button - IMO worth a quick check.
How dare you disparage my cute little power supplies! Them's fightin' words!!!!![]()
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How dare you disparage my cute little power supplies! Them's fightin' words!!!!![]()
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Yea cute - but where's the color screen?
Where's the digital input keypad?
What about firmware updates.
No I'm afraid those are useless these days.