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Author Topic: TALE OF THE IMPLODING TV  (Read 44287 times)

duff

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Re: TALE OF THE IMPLODING TV
« Reply #45 on: December 15, 2008, 04:03:45 PM »
Guys,

I don't know much about the internal workings of a TV but last night I had a dream which may or may not be of significance here.


In the dream, I had posted an experiment someone else had done and was reevaluating the results. I was being told that there was some significance related to the capacitance in the clamping circuit.

From Wikipedia:
Quote

Alternatively a clamping circuit may also be defined as a circuit which inserts a DC component into a signal. Perhaps the most common such clamping circuit is the DC restorer circuit in analog television receiver, which uses reference levels in the sync pulse in the horizontal blank (inserted during video modulation).

The network must have a capacitor, a diode and a resistive element, but it can also employ an independent DC supply to introduce an additional shift. The magnitude of R and C must be chosen so that t = RC is large enough to ensure that the voltage across the capacitor does not discharge significantly during the diode's "Unconducting" interval.



HEYDUDE

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Re: TALE OF THE IMPLODING TV
« Reply #46 on: December 16, 2008, 04:13:04 AM »
Very significant post, Duff. Your dream has a great deal of meaning, at least to me. A while back I was experimenting with DC restorer circuits to auto-bias the pulses above zero so that they do not reverse.

The non-reversal of the signal (below zero) has been alluded to as a key necessity by Spherics. This prompted me to use the pulse itself to provide the bias with the DC restorer circuit rather than externally.

I believe a few others may also have tried this.

Keep dreaming, you are tuning in to something.

Grumpy

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Re: TALE OF THE IMPLODING TV
« Reply #47 on: December 16, 2008, 06:02:03 PM »
deleted
« Last Edit: December 16, 2008, 06:24:33 PM by Grumpy »

giantkiller

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Re: TALE OF THE IMPLODING TV
« Reply #48 on: February 26, 2009, 06:48:22 PM »
These effects in this pic were caused by a 556 chip failure.

When the pulse was on things were under control. When off the ground had noise. But that doesn't explain the 3.5x voltage height. False or uncontrolled fet triggering? I am still impressed with what I see there.

Imagine a 17kv transformer in this mix.

--giantkiller.

Peterae

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Re: TALE OF THE IMPLODING TV
« Reply #49 on: February 27, 2009, 12:02:10 AM »
Argh Ground noise is a wonderfull thing, i have spent months trying to get rid of it during TPU experiments with high Dv/dt switching, and i guess i finaly managed go get rid of it by using multi layer pcbs, after all who wants 300v of PK pulses across 1mm stretches of pcb track.

Modern EMC law is a great thing, use multiple layer pcbs and you spread the energy across gnd planes which have multiple capacitances to dissipate the RE Energy and loose the horrible ground noise or we can use ferrite to obsorb this energy to make sure we dont find it's true nature.
Hang on did i mention that ground noise is RE offcourse it is, Tesla was able to light light bulbs across a U shaped copper bar, thank god EMC kills this energy, we wouldnt want to discover free energy would we.

The great news is that we can pipe this RE oops ground noise to an iron wire delay line that is capacitively coupled to ground along it's length to sharpen the speed and amplitude of this pulse and if this delay line is not terminated relfect it back to where it was generated, but now we have our original hi Dv/dt pulse with a much sharper high eneergy reflection on top of it if delayed by the correct timming which is about 10% of the oringinal pulse time, trouble is the dam delay line keeps glowing blue sparks and melts.





giantkiller

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Re: TALE OF THE IMPLODING TV
« Reply #50 on: February 27, 2009, 03:42:34 AM »
It was some kind of intermittent failure of the chip. So I repaired it and of course threw away the bad part! That is probably equivalent to burning down Alexander's Library.

I cleaned house and threw the baby out with the bath water. Real ARGH!

Prior to this I was gonna pump in 2kv. That is what made think of this thread

I got really dismayed and was ready to throw in the towel for good. But being a recovering 'Type A' personality i shut everything down and went to bed. As I stepped into the shower the next morning, Eureka! Harmonics causing heterodyning. Right in front of my face. Now in front of yours.

Glad somebody responded.

--giantkiller. Noise is our friend. 8)

Florian

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Re: TALE OF THE IMPLODING TV
« Reply #51 on: March 05, 2009, 10:02:08 PM »
Hi all,
I've been reading the threads for a while - (not yet all posts- they're quite a few) and I have not see anything yet regarding safety control.
If the TV story started everything we're looking here at very dangerous stuff - at least until the technology is well established.
It looks to me that the TPU , once started, would go into a kind of positive loop and - if not stopped somehow with some negative loop control - would continue until self distruction.
So my questions would be:
1) How to create the positive loop - for instance, if the first pulse would make particles in the collector ring move in one direction, how would you sense that movement and use the sensor output to shoot  again in the same direction.
2) As stated several times by SM, the "resonance" should not be allowed to be perfect. In a positive loop, the device would tend to go by itself to resonance so how would you sense that and how to use that sensor to control the "near resonance" state and eventually shut down the whole thing before harm is done.

Everybody posts about how make the TPU start generating power - how about controlling the events once they're started?

Any ideas?

Bruce_TPU

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Re: TALE OF THE IMPLODING TV
« Reply #52 on: March 08, 2009, 11:04:15 PM »
Hello All,

I believe I have hit on an important discovery.  Everyone wonders, if they are to start using tubes, what circuit?  What tubes?  Etc.  I think I have found a SIGNIFICANT clue!  I have spent all afternoon writing it up and have placed it into .pdf form for all.   

I owe Marco a thank you, for I have built on some of his research, as quoted in the .pdf.

Enjoy!

Bruce

otto

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Re: TALE OF THE IMPLODING TV
« Reply #53 on: March 09, 2009, 07:20:01 AM »
Hello all,

thanks Bruce for the schematic. This schematic is very important!!!

I used a EZ 81 rectifier tube but its a wrong tube!! Im waiting for my 5U4 tube that I have ordered.

Now, electronics experts, show me what is sooooo special with the 5U4 tube. Im not so clever.

Otto

BEP

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Re: TALE OF THE IMPLODING TV
« Reply #54 on: March 09, 2009, 11:11:06 AM »

Now, electronics experts, show me what is sooooo special with the 5U4 tube. Im not so clever.

Otto

Not much is special about the 5U4. Is does use a filament for the cathode. This should allow superposition of the heater current upon the plate current.

Now the 5U4GB.... There are more special things. Add higher sustained current and voltage output.

500v-0-500v? = center tapped transformer secondary
300mV ? = typo - should be 300mA but same typo twice then he switches to 250mA?

Both are on the edge of the tube operating curve - intentionally overdriving the tube?

Feeding the 5U4GB with already rectified AC? Who knows? Silicon rectifiers can do some strange things.

Nice work Bruce. Keep in mind the power supply is just a power supply. The parts that make color possible are on the rest of the schematic.

BEP

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Re: TALE OF THE IMPLODING TV
« Reply #55 on: March 09, 2009, 12:44:46 PM »
Superposition of waves is not difficult. See attached pic.

What I wonder is what happens if the heater secondary is not quite in sync with the plate secondary AND superposition happens?

My other question remains: Why would someone so familiar with these circuits mention feeding a rectifier with a rectifier?

Bruce_TPU

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Re: TALE OF THE IMPLODING TV
« Reply #56 on: March 09, 2009, 01:44:25 PM »
Hello all,

thanks Bruce for the schematic. This schematic is very important!!!

I used a EZ 81 rectifier tube but its a wrong tube!! Im waiting for my 5U4 tube that I have ordered.

Now, electronics experts, show me what is sooooo special with the 5U4 tube. Im not so clever.

Otto

Hi Otto,

BEP is correct, about using the 5U4 GB and I would suggest the GE brand.  There is nothing special about the HV supply but rather, the "interactions" of different currents SM saw at the transformer.

I believe the part of the Schematic that deals with placing the different colors on the screen, (the part of the WHOLE schematic labeled "killer"), hit for a moment the "special" frequencies and this interacted with the HV power supply (the part of the schematic I clipped into the .pdf).  So, SM talks about how he began to study the interaction of DIFFERENT frequencies AND AC an DC current in the same wire, studying their reaction in the transformers. 

Again, just a tube HV power supply, but the interactions of different frequencies at the transformer is what should be looked for, IMHO.

Cheers,

Bruce

slapper

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Re: TALE OF THE IMPLODING TV
« Reply #57 on: March 10, 2009, 06:03:45 AM »
Thank you Bruce_TPU and thanks -marco-

I can't avoid seeing the a common theme. High voltage coils mixed with high current coils wound on a common core.

Not sure how one would go about to combine the 2 on a single conductor though.

The following image may appear to some as plagiarizing (they'd be right) but here it goes.

Thanks again guys.

Take care.

nap

otto

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Re: TALE OF THE IMPLODING TV
« Reply #58 on: March 10, 2009, 11:05:48 AM »
Hello all,

you really think its only a oridinary power supply.

Its OK but then you can answer me my question:

Why is my my output electrolytic capacitor slowly charging?? The voltage rises from 0V to 4V.

The power supply is disconnected from the wall, the oscillators are disconnected from the wall.

Is it the tube or my copper core??

Otto

PS: yes, this is normal.

wings

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Re: TALE OF THE IMPLODING TV
« Reply #59 on: March 10, 2009, 05:14:25 PM »
Hello all,

you really think its only a oridinary power supply.

Its OK but then you can answer me my question:

Why is my my output electrolytic capacitor slowly charging?? The voltage rises from 0V to 4V.

The power supply is disconnected from the wall, the oscillators are disconnected from the wall.

Is it the tube or my copper core??

Otto

PS: yes, this is normal.

@ Otto

Please can show us your current circuit ..... and some test setup picture