DC Wave Questions

Er..the gospels are the biggest pile of erroneous nonsense one can come up with. Its all about those imaginary beings, that can do anything, be everywhere at once, knows everything etc...

Kevin Aylward snipped-for-privacy@anasoft.co.uk

a very affordable Mixed-Mode Windows Simulator with Schematic Capture, Waveform Display, FFT's and Filter Design.

Look, this isn't an argument, it's just contradiction!

No curve but some info:

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Sorry to hear that. I was surprised that I couldn't simply Google this. But the elusive neon sign transformer voltage current curve remains uncaptured.

The tripple-point of water is ~4C, so the freezing point is dependent on pressure, at least somewhat. Here is a phase diagram for water, which shows that the freezing point isn't quite vertical:

It's *ALL* out there. Not *ALL* is correct though. ;-)

Don Lancaster has written many articles for electronics magazines. Also regular columns for several electronics magazines (probably still running). One of his books (CMOS cookbook) was a standard for many years. You might be able to learn something from him too.

Bud--

John Lark> >

Thanks, but this info is more confusing than clarifying.

The table of data at reduced voltage looks pretty linear, and if the normal operating curve is not based on any nonlinear elements, then this should extrapolate to something pretty close to the actual curve.

Table excerpted: " Regulation - Between an open and a short circuit, the core and winding construction results in a quasi-constant current characteristic over much of this range. I did a test on a 12 kV, 30 mA transformer at reduced voltage (I didn't have any way of providing a variable load at full output so I used a Variac to set the no load output voltage to 1,000 VAC): Load Output Voltage Output Current ------------------------------------------- Open 1,000 VAC 0.00 mA R 560 VAC 1.43 mA R/2 350 VAC 1.79 mA R/3 250 VAC 1.91 mA R/4 195 VAC 1.99 mA R/5 160 VAC 2.04 mA Short 0 VAC 2.10 mA"

But a few paragraphs later we read: "(From: John De Armond ( snipped-for-privacy@bellsouth.net).)

Let me answer several questions at once. First, a 15 kV, 60 mA transformer will produce 60 ma almost up to its rated voltage. The transformer is designed to be a constant current device, to supply whatever compliance voltage is needed to push the 60 ma through the load. The 60 ma is nominal short-circuit. All magnetic transformers made for use in the US are designed for continuous use at no more than 80% of the short-circuit current.

I never actually sat down and plotted it out but I do know this: With 1 foot of neon tubing on a transformer (about 500 volt drop), it drives 60 mA. With over 60 feet of tubing on the tranny (more than specified), it still outputs about 50 to 53 mA. That's fairly constant current."

But 80% of short circuit current would be 48 mA, and the current did not fall that far, even with an excessive 60 feet of tubing as a load. So the various parts of this story do not add up. The low voltage test indicates linearity, while the full voltage test indicates current regulation. The specified operating current does not match the measured current.

So I am still confused.

No, it's not! ;^j

...

Hey! Let's not knock the imaginary!

Where would electronics be today without sqrt(-1)? ;-)

Oh no, I thought someone was referring to The Phantom's tutorials.

Don always makes eminent sense. I have his Active Filter Cookbook right here.

John

The quoted posts were not as you have posted them. They did not include the "[Don Lancaster)."

Shame on you, Bud.

Don

The standard English syntax for inserting edited text into a quote, usually to show meaning that deleted context made clear, is to enclose it between said square brackets.

Which is to say that, while not commonly used on Usenet, Bud's quote is proper style. If you read newspapers or news magazines you will see it used often.

Quotes in this post have been edited by application of the DERF transform, whereby Dreck, Extraneousness, Redundancy, and Foolishness are replaced with "[DERF]".

"Fred Bloggs" wrote >> "Fred Bloggs" wrote in

solid, that graph shows "freezing" occurring at 273K

You have now demonstrated yourself to be either an idiot, blind, or a liar. Not does the straight portion of that curve fail to reach 10^9 Pa, no part of it reaches that pressure.

on pressure, the freezing point, I believe, is not"

Actually, John's post to which I first responded in this thread, mentioned "sublimation". So, again, ignoring that whole phase change boundary would be silly.

The conversion of water vapor into ice is "freezing". You cannot, by assertion and fiat, eliminate that part of water's phase space. In your typically parochial manner, you appear to confuse your familiarity with one meaning of the word with comphrehensive knowledge. Anybody less certain that they know everything can find several additional meanings, including my usage, at:

[DERF]

Have you ever considered why you are so prone to spewing so much self-revealing vitriol?

What did Eugene have to say? And tell me, do you know who Jim Roberts and Eugene Miya are?

If we have you using Roberts as a supporting witness, and Eugene (yes Eugene and I have met) as mine... you do realize that you're off the deep end again? (Roberts is somewhat of a net loon. Eugene Miya is a net legend.)

You've proven that you aren't the first twit that I've poked enough to cause erruption of tantrums. You can't say I didn't warn you not to try a flame war...

sqrt(-1) is just as imaginary as 1 is.

Kevin Aylward snipped-for-privacy@anasoft.co.uk

a very affordable Mixed-Mode Windows Simulator with Schematic Capture, Waveform Display, FFT's and Filter Design.

No it isnt. An argument is a connected series of statements intended to establish a proposition...

next...

Kevin Aylward snipped-for-privacy@anasoft.co.uk

a very affordable Mixed-Mode Windows Simulator with Schematic Capture, Waveform Display, FFT's and Filter Design.