Testing the TK Tar Baby

[picowatt]

Rosemary,

We will just have to agree to disagree to whether your posts are emotional.

My read sees plenty of emotion.  And yes, my post too was filled with a bit of defensive emotion, for the reasons discussed therein.  Hopefully you will take some of it to heart.

Again, I truly do wish everyone would/could just lighten up.

I cannot see from that video what it is you are discussing, it is not TK's best videography.  I can't read much of anything on my screen.  Possibly TK has a clue.

PW

[picowatt]

OOhh she makes me so mad. How can someone be allowed to get away with that crap? "Depleted to three volts". Repair technician not revealing the use of a broken scope. She objects to my scope shots that show identical phases to hers. She thinks that two circuits built with the same components using the same diagrams and tested in the same way will somehow work differently in the northern hemisphere than in the southern. Or is it just in my lab that reality bends?  How can she get away with it? Every post of hers is filled with crap like that, and the sheer illogic isn't even the worst part of it. She misinterprets, then accuses and rants based on her misinterpretations and misunderstandings, and then lies about it all later. She will be proclaiming that I am a repair technician and my scopes are "in for repair" now. As if I could take apart a Tek DPSO and fix something in there with a crescent wrench and a soldering iron.

I did not get to look at the sun today... I was busy out buying BULBS and even a DC-to-DC converter to try on this ridiculous project ...  but tonight I've got the best view of Saturn that I personally have ever seen. I can clearly make out the Cassini division in the rings and follow it around in _front_ of the planet about half the time as the seeing waves in and out. That's the first time I've been able to do that. Of course in the years that I've had the scopes, the rings have been their very flattest but are now opening up nicely. The tiny shadow of the rings on the planet, the shadow of the planet on the rings in back, some banding and color contrast in the planet's disk.... Titan a respectable way off to the left and three other moons in a nice formation nearby to the right side..... spectacular. It's too much trouble to set up to try to get a photo though. If it's clear again tomorrow night I will, though. To think that we have a robot spacecraft up there right now, skimming moons and taking pictures and streaming back incredible data.... it boggles the mind. And all done by people who paid attention in school, and who believe totally in QED, the Standard Model, and the Laws of Thermodynamics.
Mars is kind of washed-out; I wonder if there's a duststorm happening. I can make out a brilliant white area that is the polar cap, and some dark markings, but no canals tonight ! And of course no "mystery plume"... I just don't have the aperture and wouldn't know when to look anyway.

TK,
Were you "looking through" your Williams?

Just curious as to how well your Megrez performs when used for direct viewing.

PW

[TinselKoala]

Here you go TK - MileHigh - picowatt

Take a good look at this video.  At the first 3 seconds or so there is a negative voltage indicated across the shunt resistor.  Then take a good look at the surroundings to that video.  Then ask TK the questions that follow.

And picowatt.  I've just re-read my posts.  I see NOTHING emotional written there.  I am NOT being emotional.  In fact it is both you and TK who are.

You lying mendacious idiot. That top trace is EXACTLY like yours and shows the same thing as yours does... a voltage oscillating around zero.  Just as yours does. And what do the surroundings have to do with the FACT THAT I AM REPRODUCING YOUR DATA?

And the rest of your "questions" are irrelevant and their purpose is clear: insinuation and prevarication. Again... you do not understand what is actually being shown because you are ignorant of the prerequisites and I simply do not know how to dumb things down to your level. You don't even understand ALGEBRA, ffs.

YOU are the one making claims, I can do whatever I want when and where I want to and I do NOT have to do or show anything at all, much less things that YOU have never shown.

[MileHigh]

TK:

I am trying to remember - the viewing cycle for the rings, is it 22 years or something like that?  So if the rings are coming back does that mean the next seven or eight years will be good viewing years?

Can you see the rings with your naked eye live looking through the eyepiece of your reflector telescope?  I have always wanted to do that.

Just one more tidbit.  Lots of us grew up excited thinking about the return of Halley's comet in 1986.  That turned out to be a big bust.  But my God, that comet in 1997.  I drove up north with a friend in an attempt to escape the light pollution.  Then we walked out into a farmer's field and looked up in awe.  I was just like I fantasized that Halley's would look like as a 10-year-old.  It was amazing.

I almost wish I had had the urge to go into astronomy during my university days.  It's an exciting time to be alive if you are an astronomer.

MileHigh

[TinselKoala]

@PW: No, the EdgeHD. The WO is utterly crisp but at f/6 for visual use.... images are small. But it can get the whole Pleiades in the frame. The EdgeHD at f/10 is better for the planetary stuff but has a much narrower FOV.

The video that the poser is currently objecting to was shot elsewhere, obviously. I don't know why it's difficult to make it out. I'll be glad to explain anything you like. I took TarBaby over to the scope's owner's place and let them play for a while. It's a Play Date, and that's why no serious stuff was done YET with that scope. There is a real reason why I am doing all of this with the HP180 instead of the digital scopes at my disposal, and I think you know what that reason is. But certainly... now that I have shown exactly the same evidence that Rosemary has shown using the "useless" and "non-measuring" analog scope.... I will be visiting with the Tek's owner again for more serious conversation and drinks. And our pets can play together again.

In the video I basically show that 1) I have access to a DPSO, perhaps a better one for the purpose than they used.... 2) Tar Baby can travel without difficulty and make oscillations on demand like a good little circuit.... 3) that Rosemary would initially misidentify the scopeshot as one of her own, which she did..... 4) That under certain conditions the battery power can get to the board through the probe ground leads (I disconnect the battery negative cable at one point and of course the circuit keeps on keeping on... because there's a probe ground lead at the battery negative pole, as well as another one at the board's main ground point for the gate monitor channel.
Of course her rant about "negative mean voltage at 3 seconds in" is referring to the top trace across the CVR (and this is also a time when she claimed that I never showed a trace here) which shows, as you can clearly see in the comparison shot from her... the same thing that hers shows, an oscillation about the zero line. I don't recall ever showing the actual value of the mean for that channel though.
And that video was made and posted nearly THREE WEEKS ago. My how time flies. And she is using it now to distract, deliberately, from the devastating power computations that we made yesterday, doing her typical tactic of switching topics and filling page after page with insults and innuendo rather than addressing the real issues.

I emphasise the "GREEN TRACE" in the video because that's another thing she has been utterly wrong about... she ranted and raved over and over about how the GREEN TRACE in HER video was NOT the common mosfet drains, when it clearly is, and yet she would never say just what it actually WAS if it wasn't the drain trace. That was back in the locked thread, which is still viewable in the "solid state devices" section of the forum.