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OverUnity Research > Electrical / Electronic Theory and Learning Center > Joule Thief Circuits > General JT Topic
2024-11-27, 20:47:10
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Author Topic: General JT Topic  (Read 60378 times)
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img  stprue
General JT Topic « on: 2009-12-16, 16:39:28 »

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Welcome to the JTG topic where we can put more basic/vague or pretty much any JT info you want here!!!

I will start off by showing you a link to one of my Tube videos showing an MK1 X2 style collector and base coils with just a few turns of 22awg for the primary!  Enjoy  8)

[youtube]http://www.youtube.com/watch?v=IsslTUxX-VE[/youtube]
« Last Edit: 2010-01-02, 17:44:51 by stprue »
   
img  Fraser
Re: General JT Topic « Reply #1 on: 2009-12-17, 16:46:42 »
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Nice, now we all need to use similar protocols to measure input and output powers of these oscillators, something that the other JT crowd simply aint doin!

Now you have your new scope it's time we start doing that. I've just taken delivery of 50 x 0.1 ohm 0.5 watt resistors, with these I plan to make a little probe box so that I can hook scope up and calc real RMS powers. If you want I can post you 10 of these hand picked to give true 1ohm and 5 watt power handling with no inductance if we lay them on a small vero board correctly. Just PM me your snail mail address if you want these. I'm presuming your rigol scope has sampling and simple math functions on it like multiplication and RMS?

That maxcap is unbelievably small for its capacity and V, where did you get it?
   
img  stprue
Re: General JT Topic « Reply #2 on: 2009-12-18, 23:20:29 »

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Yes I know there is pretty much no data but at the same time I can assure you it's just an efficient (well not that efficient) new design.  I have since deconstructed it.  My wife will not let me open the scope until Christmas  ??? The probe box sounds awesome!  I want to buil one...when I get some $$$ might be a while after the scope.  I believe you have my yahoo address but let me know if you need it again.
« Last Edit: 2009-12-22, 13:51:25 by stprue »
   
img  stprue
Re: General JT Topic « Reply #3 on: 2010-01-02, 17:42:11 »

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Interesting new Super JT/Boost Circuit


[youtube]http://www.youtube.com/watch?v=EzlMHlnK2DM[/youtube]
   
img  stprue
Re: General JT Topic « Reply #4 on: 2010-01-27, 23:47:29 »

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For anyone that does not know how to build a JT!  This is a very basic, simple and powerful JT!  Have fun building  8)


[youtube]http://www.youtube.com/watch?v=Nsir2F7edCs[/youtube]
   
img  Peterae
Re: General JT Topic « Reply #5 on: 2010-01-29, 17:52:34 »

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Buy me some coffee
Hey St that was great thanks for making that,it's the first time i have looked at the JT, it would be interesting to try the Avremenko plug i played with today on the JT, i think i better build one ;)


Cheers,
Peter
« Last Edit: 2010-01-30, 11:44:02 by Peterae »
   
img  Allcanadian
Re: General JT Topic « Reply #6 on: 2010-01-30, 08:02:48 »
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@fraser
Quote
Nice, now we all need to use similar protocols to measure input and output powers of these oscillators, something that the other JT crowd simply aint doin!
I think some were measuring efficiency, my measurements ranged from 40% to over 90%.


---------------------------
Comprehend and Copy Nature... Viktor Schauberger

“The first principle is that you must not fool yourself and you are the easiest person to fool.”― Richard P. Feynman
   
img  stprue
Re: General JT Topic « Reply #7 on: 2010-01-30, 21:28:34 »

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I'm glad you liked it...I hope it was clear!  Let me know if you need any help  ;D
   
img  Farrah Day
Re: General JT Topic « Reply #8 on: 2010-01-31, 13:08:06 »
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You've probably seen these, but I think these videos are quite fascinating and by far the most interesting and indeed intriguing JT experiments I've seen.

http://www.youtube.com/watch?v=ZanIc5nS78A

http://www.youtube.com/watch?v=pLBG1eodFfE&feature=channel
   
img  stprue
Re: General JT Topic « Reply #9 on: 2010-01-31, 13:33:17 »

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Thank you for posting these Farrah Day!  I have seen these and I completely agree with you that they are some of the most interesting vids I have seen as well!
   
img  Farrah Day
Re: General JT Topic « Reply #10 on: 2010-01-31, 14:07:09 »
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If indeed the JT in the videos is tapping into radiant energy, it's doing it seemingly with a lot less trouble than Stiffler's SECs.  From my experience SECs are far more temperamental than JTs requiring specific transistors and accurate tuning. By contrast the JT's are even simpler ccts, not too fussy about specific components and appear to work every time.

This new wireless phenomena adds yet another dimension to the JT saga, which has certainly notched my interest levels up a peg or two.

Perhaps... just perhaps, we do tend to overcomplicate things in our search to tap into radiant energy. Maybe it's just a matter of it being 'simple if you know how'! Great stuff.

Would be interesting to hear .99s view of those videos.
   
img  Farrah Day
Re: General JT Topic « Reply #11 on: 2010-02-02, 09:47:32 »
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Got to say I'm a little surprised that not more people are picking up on the JT stuff. Jonny Davro is getting some intriguing results with this little cct, results that may go some way to explaining the apparent OU phenomena in other devices.

In the video linked below, he adds a 3rd winding to a ferrite toroid and finds that when this 3rd winding is used to power a LED, the current in the primary cct falls!  This little toroid would seem to me to be comparable to Bob Boyce's much larger toroid in the application whereby Watykyki...thingy person is self-charging his kids toy car battery.

http://www.youtube.com/watch?v=W5irW__iwfk&feature=channel

This is so easy to replicate that I really do not understand why more people have not dropped what they are doing just to give it a quick go.  unlike may youtube videos that lack useful detail, Davro, shows his ccts and often talks you through his experiments. Hence, unlike many videos, he does not leave you guessing on specific details.

If you haven't looked yet boys, I would recommend you checking out all of his videos.

In fact it would be really nice to get the guy to come over here.
   
img  stprue
Re: General JT Topic « Reply #12 on: 2010-02-02, 13:10:37 »

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Another good find!  I will rewatch this vid later today at a computer with sound.  I have just ordered some parts to replicate this and will share any results.  I will probably get the parts in a week or so.

Toko coil (still not quite sure what this is yet???)
3 different types of 4KV trigger coils
Inductor assortment
several different types of PNP transistors 5 of which are germenium
micro bridge rectifiers.
   
img  Farrah Day
Re: General JT Topic « Reply #13 on: 2010-02-02, 14:05:16 »
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There are a few of his videos lacking sound for some reason, this is unfortunately one. But as he provides full cct details it's easy enough to replicate and confirm his results anyway.
   
img  stprue
Re: General JT Topic « Reply #14 on: 2010-02-14, 16:21:25 »

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Here is my first go at the simple SEC or SuperJT....whatever you want to call it!

[youtube]http://www.youtube.com/watch?v=PugsoCe2pqU[/youtube]
   
img  stprue
Re: General JT Topic « Reply #15 on: 2010-02-15, 15:47:34 »

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Here are some pics on some of new tests(5vdc in)!

I put up the wave form because the diamond pattern seemed interesting!

The tube is 8 watts drawing 24.56ma!

Very little MA draw 2.88!
   
img  darkspeed
Re: General JT Topic « Reply #16 on: 2010-02-15, 17:46:55 »
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Cool..

stprue if you measure the width of the diamond pattern then adjust the frequency say 10hz at a time in one direction the patter will get wider.. keep going until you get the pattern almost flat and you are near a resonant frequency..
   
img  stprue
Re: General JT Topic « Reply #17 on: 2010-02-15, 18:03:51 »

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It's funny I actually learned this by accident>Moving my hand near it does that!

  :)
   
img  darkspeed
Re: General JT Topic « Reply #18 on: 2010-02-15, 19:06:40 »
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True!

moving your hand changes both the capacitance and inductance of your tank
   
img  stprue
Re: General JT Topic « Reply #19 on: 2010-02-17, 20:57:32 »

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Here is my recent vid!  I have sense improved the circuit so that I don't need to touch it and in fact I have added a couple of LEDs on an additional av plug and I can reduce the ma draw by adding LED's!

So more LED's= less MA draw.......this is getting fun   ;D  ;D

[youtube]http://www.youtube.com/watch?v=jTI-bfXFGzk[/youtube]
   
img  stprue
Re: General JT Topic « Reply #20 on: 2010-02-19, 20:25:32 »

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Here is my new video showing me adding more leds via AV plug on the receiver metal and it draws less ma's!!!

[youtube]http://www.youtube.com/watch?v=Gcoti7FrVK0[/youtube]
   
img  Farrah Day
Re: General JT Topic « Reply #21 on: 2010-02-20, 09:56:31 »
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Hi St

Yes a good replication and confirmation of Johnny Davros findings.  Rather intriguing isn't it?

Just trying to get your head around what might be occuring is difficult in itself. It's hard to make sense of it if you view things from the way we would normally look at things. 

How can we possibly be getting a power reduction from the source by powering additional ccts?

Really interesting stuff. I only wish more people were applying themselves to this, because this isn't as speculative as most of the other things knocking about and is so easy to reproduce.

I'm wondering just how far we can take this.
   
img  stprue
Re: General JT Topic « Reply #22 on: 2010-02-20, 13:19:24 »

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Thank you for your response! On this particular set up the pickup actually is a loop of wire and the pan is the virtual ground so by putting my AV probe on the VG I light LED's and reduce the draw!!

 I bet if I attached another VG from the probe I could get more LED's lit.  That will be my next test.
   
img  stprue
Re: General JT Topic « Reply #23 on: 2010-02-20, 13:33:35 »

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Directions on how to replicate! No excuses now!

4KV Trigger coil
Top leg=output connect to pan
Bottom front/right=collector
Bottom back/right=not used
Bottom back/left= + rail

Transistor
Emmiter= - rail
Base=Pan
   
img  stprue
Re: General JT Topic « Reply #24 on: 2010-02-20, 13:50:05 »

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I also wanted to post a new tube vid from user Kooler that shows a JT with a different set up lighting 9 LED's and running on 1.2 v and drawing 1.5ma very impressive.

[youtube]http://www.youtube.com/watch?v=7lO-Bb5MHZ8[/youtube]
   
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