Andrew,
It makes it much easier if you add the comma to the numbers when they get that large such as 100,000 or 100K would also be fairly universal. Hrs is fairly standard as far as I know for hours. Otherwise I don't see any problem with any of the ways you posted.
It makes it much easier if you add the comma to the numbers when they get that large such as 100,000 or 100K would also be fairly universal. Hrs is fairly standard as far as I know for hours. Otherwise I don't see any problem with any of the ways you posted.
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I used to use the comma separator to divide the thousands and make for easier legibility
But my EU neighbours use the comma as the decimal place, even though they are in an english technical language Forum.
It seems that avoiding the separator will help with unambguous typing until we get all our Members to use the stop (.) as the decimal place.
How do you read:
1.000Vdc
1,000Vdc
1,000,00Vdc
100,000.0Vdc
0.1Vdc
0,1Vdc
,1Vdc
.1Vdc
that list has some ambiguity as long as we have to tolerate the EU convention of using the comma decimal place on our Forum.
Do you see why I felt the need to change from my former practice of correctly using the comma (,) separator for easier legibility, in this english language Forum?
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I tell myself that I can't spell, now you have proved it. And everyone knows my grammer is near non existant. But when Members take the time to inform me, I try to take the advice on board.
Unfortunately, my Browswer has stopped spellchecking after I did an update after an invite to speed up Firefox, even though it appears to be turned on. I have checked twice.
Find other links to parliamo Glasgow
https://www.youtube.com/watch?v=0fw_2waRx7s
concatenating the words in the translation makes the reading nearly impossible.
Maybe I had that in mind when I separated out the "de"?
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Exactly what a HD/ER diesel engine is, a pinched/squeezed/quenched version of the standard model.
(call me a pathetic bean counter soab, for non-politicians, 'most of the time' is way over 50%. My attorney advised me to make a public announcement : any resemblance to legal/illegal persons or statements of a political nature, is purely a figment of your imagination.)
"I have to start getting used to adressing you as Mr. Mr. Russell, Mr. Russell."
9.5 years in Asia, (Tokyo, Taipei, Shanghai) back in Europe now. Hustle and bustle of Shanghai on Sunday and today I took a walk in a beautiful forest. Awesome!
I consider myself very lucky to have experienced what I did career wise.
My equipment will arrive in about 5 weeks, my wife will be sent out to do some shopping and I am going to wind it up. Apparently the 703's can take 200 watts.
😀
__________________
Hasi bo best
9.5 years in Asia, (Tokyo, Taipei, Shanghai) back in Europe now. Hustle and bustle of Shanghai on Sunday and today I took a walk in a beautiful forest. Awesome!
I consider myself very lucky to have experienced what I did career wise.
My equipment will arrive in about 5 weeks, my wife will be sent out to do some shopping and I am going to wind it up. Apparently the 703's can take 200 watts.
😀
__________________
Hasi bo best
All those places, cultures, foods and the politics is a special education itself. How long will you stay in Europe this time?
THx-RNMarsh
THx-RNMarsh
The Blowtorch that was recently pictured was so 'pretty', even 'shiny', that I did not recognize it. For the record, we didn't add any led's to the CTC Blowtorch, because they would add something extra that is NOT really necessary for the function it was intended for. I do use led's in the Parasound JC-2 and many other designs.
reverse currents
The first time I have seen an absolute maximum reverse current spec. One wonders if that is a degradation mechanism similar to the effect of reverse breakdown on base-emitter junctions, which is well-known to degrade beta.
In that other forum years ago a couple of us took issue with the operation of a very sensitive soul's "optical compressor" as being questionable, as the guy had a 100nF driving the LED of an optocoupler --- and nothing else. PRR stepped in and chided us for our failure to see that the designer was counting on the reverse breakdown of the LED to pass currents of both polarities. Indeed that was how it managed to work, but I maintained that the breakdown voltage was not an even-remotely-guaranteed spec. I even measured a bunch of LEDs, and contacted the manufacturer of the opto about it, receiving a stony silence.
So maybe the design was something that needed an extended "break-in" 🙄
But so far, all of this data about light output aging has not touched on the association, or perhaps the lack of it, with forward-biased I-V curves and noise. I haven't looked too hard, but searches for such are not yielding much of anything.
That's illuminating <ducks>.
The first time I have seen an absolute maximum reverse current spec. One wonders if that is a degradation mechanism similar to the effect of reverse breakdown on base-emitter junctions, which is well-known to degrade beta.
In that other forum years ago a couple of us took issue with the operation of a very sensitive soul's "optical compressor" as being questionable, as the guy had a 100nF driving the LED of an optocoupler --- and nothing else. PRR stepped in and chided us for our failure to see that the designer was counting on the reverse breakdown of the LED to pass currents of both polarities. Indeed that was how it managed to work, but I maintained that the breakdown voltage was not an even-remotely-guaranteed spec. I even measured a bunch of LEDs, and contacted the manufacturer of the opto about it, receiving a stony silence.
So maybe the design was something that needed an extended "break-in" 🙄
But so far, all of this data about light output aging has not touched on the association, or perhaps the lack of it, with forward-biased I-V curves and noise. I haven't looked too hard, but searches for such are not yielding much of anything.
Of course the spec may be that at 5V reverse the devices will never have more than that reverse current.
I kind of prefer blue LEDs, but I have a very bright one on one of my computers, and I had to put something in front of it to shield my eyes, it is so bright. Quite annoying.
The '-) part of my earlier 'complaint' about LED's was due to the late lamented Enid Lumley, once a good friend of mine, who complained about them being noisy. She was very sensitive to just about everything, and I learned to trust her impressions.
Permanently now - I'm done adventuring. Time to focus on building more audio stuff.
I've got to explore Scotland, Iceland . . .
🙂
I've got to explore Scotland, Iceland . . .
🙂
I've always assumed forward biased LED's are very quiet. I'll have to stick one on the sound card in a few weeks and take a look.
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There is extensive literature in using LED's for medical devices. Those SPO2 finger clips use RED and IR pulsed at very high peak current. I have found 1/f and popcorn noise in the optical output. Don't fool yourself the medicos use the cheapest stuff they can find, I have stories.
This one has useful data... http://www.researchgate.net/profile...ing_diodes/links/54bcea0f0cf29e0cb04c55e3.pdf
EDIT - This paper is available for free but now my link points to the one the company pays for.
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