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Author Topic: Testing the TK Tar Baby  (Read 1998536 times)

picowatt

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Re: Testing the TK Tar Baby
« Reply #4290 on: July 22, 2012, 02:50:11 AM »
You know she can't answer. She does not even comprehend the question.

She has never even checked on the applied signal voltage, because she didn't consider it relevant.

What do you make of that, then, picowatt? I certainly see it as further proof that she is an ignoramus, willfully ignorant and can neither read nor discuss schematics coherently, much less oscilloscope traces. She still has no conception of the linear conductance region of a mosfet's operation. She still believes that DC current flows across the mosfet gate, and that the drain-source channel is either at 0 ohms (sic) or that it's open, "disconnected" and cannot pass any current whatsoever, AC or DC. 

What, I wonder ... does Ainslie think the blue trace represents in all of her scopeshots?
Is there some _other_ applied signal voltage to be considered in the Ainslie apparatus? I don't think so.

TK,

Yep, if I was going to go looking for 160ma or so of bias current, I wouldn't waste my time looking for 40millivolts at the 0R25 CSR, when the voltage drop across the FG's 50R provides a way more sensitive point to view the bias current.

Of course, one would need to know the FG output "open circuit" voltage and then subtract the FG output "in circuit" voltage and divide the result by 50, but hey, that's why they make calculators.

You would have thought someone would have noticed that no matter how far negative the FG offset was adjusted, the voltage at the Q2 source always hovered at around -4 volts.  And then asked themselves why...

But, I digress, why is Q1 not functioning as per the schematic in FIG3, 6, and 7?

Sadly, back in the locked thread, I even hinted at a possible response and direction she could take that would allow her to save face, but she was on the attack at the time and did not even grasp what was being suggested.

PW

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4291 on: July 22, 2012, 03:01:20 AM »
Just completed SN002, first light, burning in, testing a different capacitor set. I only have one more set of the orange drops and my supplier can't seem to get any more.

I also have another alternative... he has some more of the poly silver rolls like I used in the prototype, which work quite well but are bulky.

I have a nice layout worked out for these pad-per-hole circuit boards that is easy to do, and the boards are available at Radio Shack and elsewhere, so the hurdle of making a PC board isn't necessary for a neat layout any more.



picowatt

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Re: Testing the TK Tar Baby
« Reply #4292 on: July 22, 2012, 03:57:05 AM »
Just completed SN002, first light, burning in, testing a different capacitor set. I only have one more set of the orange drops and my supplier can't seem to get any more.

I also have another alternative... he has some more of the poly silver rolls like I used in the prototype, which work quite well but are bulky.

I have a nice layout worked out for these pad-per-hole circuit boards that is easy to do, and the boards are available at Radio Shack and elsewhere, so the hurdle of making a PC board isn't necessary for a neat layout any more.

TK,

What's the value/voltage on those caps?  What's the total C you're going for?

PW

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4293 on: July 22, 2012, 04:34:17 AM »
Total desired capacitance is around 60 - 70 nF.

Those are 5.6 nF each, x 11, but they are only rated 250 V so they may not hold up.
The current from reactive power circulating in the loop/caps is incredibly large.

The orange drops in SN001 are 6.8 nF 600 V each, x 9, and the silver poly rolls in the prototype are 10 nF each, 500 V, x 6.

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4294 on: July 22, 2012, 04:55:26 AM »
The schematic again:

-tested to 18 V input, 7 amps draw from supply
-suggest fusing at 7.5 amps
-could go higher with adequate caps and heatsinks and forced cooling
-have not yet blown a mosfet

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4295 on: July 22, 2012, 05:11:57 AM »
What are you staring at?

Don't you know, that if you look too long into the face of the Abyss... the abyss will look long, into you.......

polln8r

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Re: Testing the TK Tar Baby
« Reply #4296 on: July 22, 2012, 05:37:48 AM »
TK!

Very clever, sir! (It's the front view of you in the same pose as that back view pic with the light on your head!)
...so, this gets me into the illuminati MIB disinformation agent club, right?
polln8r

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4297 on: July 22, 2012, 05:42:32 AM »
Hmmm..... the "probe" of the battery is providing a positive "signal" to the gates of BOTH mosfets simultaneously through the 100 Rs. And the "terminal" of the battery is providing a negative "signal" to BOTH sources directly, at the same time. 12 volts, too. So BOTH mosfets will be turned on hard, directly short circuiting the battery through the very low on-state resistance of the mosfets and the negligible resistance of the 100 uH chokes. The "transfer loop" is another direct short circuit, as anyone can see, keeping the drains of both mosfets at exactly the same voltage. And of course the capacitors don't do anything, we know they block DC.

What is the matter with you TK, do you really think anyone is going to fall for that silly face, thinking it's a working diagram of anything? Ainslie might be a total ignoramus when it comes to circuitry, but her boffins, to a man, highly accredited academics, are far too sophisticated to fall for that silly, mocking cartoon of a schematic. Why, it's veritably _actionable_.

Magluvin

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Re: Testing the TK Tar Baby
« Reply #4298 on: July 22, 2012, 05:58:41 AM »
Hmmm..... the "probe" of the battery is providing a positive "signal" to the gates of BOTH mosfets simultaneously through the 100 Rs. And the "terminal" of the battery is providing a negative "signal" to BOTH sources directly, at the same time. 12 volts, too. So BOTH mosfets will be turned on hard, directly short circuiting the battery through the very low on-state resistance of the mosfets and the negligible resistance of the 100 uH chokes. The "transfer loop" is another direct short circuit, as anyone can see, keeping the drains of both mosfets at exactly the same voltage. And of course the capacitors don't do anything, we know they block DC.

What is the matter with you TK, do you really think anyone is going to fall for that silly face, thinking it's a working diagram of anything? Ainslie might be a total ignoramus when it comes to circuitry, but her boffins, to a man, highly accredited academics, are far too sophisticated to fall for that silly, mocking cartoon of a schematic. Why, it's veritably _actionable_.

Is it due to the inequality of the components, tolerances, that gets one transistor going first into trading punches?

MaGs

picowatt

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Re: Testing the TK Tar Baby
« Reply #4299 on: July 22, 2012, 05:58:48 AM »
Hmmm..... the "probe" of the battery is providing a positive "signal" to the gates of BOTH mosfets simultaneously through the 100 Rs. And the "terminal" of the battery is providing a negative "signal" to BOTH sources directly, at the same time. 12 volts, too. So BOTH mosfets will be turned on hard, directly short circuiting the battery through the very low on-state resistance of the mosfets and the negligible resistance of the 100 uH chokes. The "transfer loop" is another direct short circuit, as anyone can see, keeping the drains of both mosfets at exactly the same voltage. And of course the capacitors don't do anything, we know they block DC.

What is the matter with you TK, do you really think anyone is going to fall for that silly face, thinking it's a working diagram of anything? Ainslie might be a total ignoramus when it comes to circuitry, but her boffins, to a man, highly accredited academics, are far too sophisticated to fall for that silly, mocking cartoon of a schematic. Why, it's veritably _actionable_.

TK,

I would try to follow your schematic, however, I now have three laptops with melted screens from trying to burn it before I read it.

Would it be OK if I just read it first?


PW

polln8r

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Re: Testing the TK Tar Baby
« Reply #4300 on: July 22, 2012, 06:05:18 AM »
TK unmasked!

Magluvin

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Re: Testing the TK Tar Baby
« Reply #4301 on: July 22, 2012, 06:23:13 AM »
Tk
Do the thick copper rails that the caps are soldered to, act as part of the length of the loop? I see that the transistors are connected at the far ends of the copper strips from the loop itself.

Nice build.

MaGs

sparks

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Re: Testing the TK Tar Baby
« Reply #4302 on: July 22, 2012, 06:30:39 AM »
  You all be careful now cause when large amounts of reactive power become active power boom.  I once was approached by a very slippery character.  He was selling bascially cheat the wattmeter electrical systems that instead of increasing power factor decreased it to get by the wattmeter then recombined the wattless components into wattable :o  components.  I knew exactly what this guy was pitching but played the fool.  I had a little time on my hands and the guy was an interesting charactor so I let him go through the whole pitch then asked him if my electrician would need a special permit to install the system.   He got pissed and stormed out.  Tesla's cap coils have huge amounts of reactive energy stored in them.  Currents completely out of phase with voltage.  That's how he stores up the energy without melting wires and such.

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4303 on: July 22, 2012, 06:47:05 AM »
Tk
Do the thick copper rails that the caps are soldered to, act as part of the length of the loop? I see that the transistors are connected at the far ends of the copper strips from the loop itself.

Nice build.

MaGs

Yes. The drains of the transistors and all the caps are connected to the thick copper ribbons which are connected to the transfer loop. The sources of the transistors are connected on the top side of the board by heavy green wires to the negative supply point. The thick center conductor is the positive rail. So all of the PS-Transistor-cap-loop circuitry is heavy and can carry lots of amps. I'd make this whole circuit as tight and heavy as possible. The fact that the transistors are in TO220 packs makes it difficult though. I'd like to find TO247 or TO3P packs that would work as well or better. Might try these IRFP350s just to see.

Yes, the circuit needs some kind of slap to wake it up. If you just ramp up the power slowly it will look like a direct short circuit and stay that way until it opens from the heat, so you need to turn it on with a relay or switch, with the full supply voltage. I imagine that any little asymmetry will wake it up and once it starts, it's feedback city.

TinselKoala

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Re: Testing the TK Tar Baby
« Reply #4304 on: July 22, 2012, 03:02:06 PM »
The more I think about this, the more astounded I am.

What if you got a letter in your mailbox and it said the following things:

Quote
I know where you live.
I have your photograph, and I know how old you are.
I know where you went to school and I have your phone number.
I know who you live with, too.
And I am planning to do my damnedest to damage your reputation and destroy your good name
as soon as I am able to.

What if?
And what if you knew that the person who sent you that letter had a history of mental illness? What then?

Would you be taking steps to assure your own safety? Would you be contacting authorities in the locale where the letter originated? Relatives of the sender, business and personal associates of the sender? Just what is the appropriate action that one should take, when on the receiving end of such a threatening, frightening missive from a patently mentally unstable individual?