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Test Equipment Anonymous (TEA) group therapy thread
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factory:
I've had a look at the display connector in my intermittant 54615B, of course it worked perfectly today  |O, was hoping to see something wrong on the Hsync signal, both HS/VS pulses measured fine. Will try again another day.   :-//


The full/half brightness video signals, seem to be TTL level.


The intensity pot on the scope mainboard and probe comp output (based on divided Hsync signal).


The display connections on the mainboard of the 54615B.


David
tggzzz:

--- Quote from: Cerebus on July 03, 2022, 02:31:33 pm ---
--- Quote from: vk6zgo on July 03, 2022, 06:37:01 am ---Yonks ago, I remember driving a 100E Ford Popular back from London to Southampton on the M3.
Back in those days, the Poms were well into tailgating, with the worst offenders being "chaps driving Jaguars".
Downright terrifying, with the poor old "Pop" screaming its guts out, and a Jag bonnet emblem seemingly in the back seat.

Tailgating was not rare in Oz at the time, but I was surprised how 1970s Brits made an artform of it!
"Culture shock", I guess!

--- End quote ---

Since those days the tailgating in Britain has gotten worse, and it doesn't matter what make of car is behind doing the tailgating or in front being tailgated.  I'm as likely to be tailgated by Nissan Micra as I am by an Audi SUV. I'd say 1 in 5 cars that gets behind me holds back to a safe distance, so 4 in 5 are too close ranging from  half what it should be to "What have you got in your boot mate? I want a look.". It seems like the average driver no longer has any grasp of basic common sense physics ranging from optics (what they can see) through to dynamics (how soon they can stop), or physiology (what it will do to their bodies when they come to a sudden stop). There are days when I feel that I need a rear gunner with at least a 20mm cannon.

--- End quote ---

...ranging from optics (what they can see) through to...
should be  ...ranging from optics (what they can see through) through to...

Too many cretins tailgate vehicle that they can't see through into chichanes or when overtaking or when pulling out to pass parked cars. Then the vehicle in front pulls back in, and they are suddenly find they are in the path of an oncoming car. The look of shock/terror used to be entertaining, but it has become too repetitive for that.
tggzzz:

--- Quote from: Cerebus on July 03, 2022, 03:40:28 pm ---
--- Quote from: tggzzz on July 03, 2022, 11:58:21 am ---
--- Quote from: vk6zgo on July 03, 2022, 06:37:01 am ---Yonks ago, I remember driving a 100E Ford Popular back from London to Southampton on the M3.
Back in those days, the Poms were well into tailgating, with the worst offenders being "chaps driving Jaguars".
Downright terrifying, with the poor old "Pop" screaming its guts out, and a Jag bonnet emblem seemingly in the back seat.

Tailgating was not rare in Oz at the time, but I was surprised how 1970s Brits made an artform of it!
"Culture shock", I guess!

--- End quote ---

I've been known to repeatedly slow down and then speed up by 5mph.

--- End quote ---



I just let a gap build in front of me to two times the standard safe distance, decelerating gently if necessary, and try to give them an opportunity to "Go away!" as soon as possible. If that opportunity requires it, and road conditions permit it, I'll accelerate away and pull into a safe gap where they're not behind me. Being left in  a cloud of dust by someone who then drops back to their original speed, well out of their way, is usually enough hint that I want them to either pass me safely or keep the hell away. If they're really persistent I'll just indicate and pull over to the side of the road forcing them to pass me if they want to continue - I'd rather add a minute to my journey than have to spend the next x miles compensating for a tailgating idiot.

--- End quote ---

Yes, I'd rather have such cretins where I can see them - and avoid them.


--- Quote ---
--- Quote ---I really ought to develop an index relating manufacturer vs how long it takes for the driver to Get A Clue. Wonder which would be beat/worst :)

--- End quote ---

Why not do it by gender, age, skin colour, wearing of a head covering (hat, wimple, turban, whatever), having children or some other entirely arbitrary characteristic? You'll get the same results whichever way, that associating a distinguishing characteristic with bad driving will just make you more likely to spot that characteristic when you spot bad driving. That's why people associate bad driving with "brand x". It's not that "brand x" drivers are any worse than drivers of any other brand, it's just that it's easy to reinforce your cognitive biases as you completely fail to attribute the "brand x" effect to any car of that make you see being driven well.

If the "brand x" attracts bad drivers effect was true, then it's converse would also be true: "brand y" attracts good drivers. However, I've never heard anyone hold forth that "Brand y drivers? They never cause any problems.". That's because people don't actively spot good driving the way they do bad, and therefore don't succumb to the human trait of trying to associate arbitrary labels with observed phenomena.

--- End quote ---

1) mensch ist mensch, the whole world over, so basing a bias on what people can't change is boring.
2) it is fun to find ways of pigeonholing people based on choices they deliberately made.
3) Accuracy? Who cares.
Cubdriver:
Upper right…



-Pat
Vince:
I prefer upper LEFT if you don't mind, for it's got Nixie tubes in it !  >:D

A " Signature Analyzer " wow that sounds fancy high tech and mysterious all at the same time.... do you hook up a camera to it and it reads a hand written signature and tells you if it's been forged or is legit ?
Pretty high-tech for the day indeed !  :-DD


OK OK... I will go download the user manual to see what it does ...  :-//

The HP noise generator at the bottom looks pretty nice, it deserves some cleaning for sure, please !  :-DD

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