Selfrunning cold electricity circuit from Dr.Stiffler

[plengo]

Will someone please post URL for ordering coils? I can not find it in the over 60 pages of thread. Thanks.

This is what I bought and worked. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:B:EOIBSAA:US:11&Item=150089628196

Good luck.

Fausto.

[k4zep]

@RStiffler

Thanks for letting me know about Ben K4ZEP 's important role in all this, and your circuit modification.  I will be happy to draw a custom version of the PCB art layout for Ben, but first, I would need to obtain a copy of 'Thomas' schematic that he would be referring to.  As stated in a previous post, my goal is to foster reproducibility, so while I do want to limit the number of circuit versions floating around in this forum, I am willing to make versions that deliver the best results, and (or) offer the most promising avenues of exploration to key members, of course, as time permits. 

DerrickA

P.S.  I miss your YouTube videos! will they be reposted?

Hi Derick,

What you have done is entirely adequate. I have in the past spend many thousands of hours designing very complicated up to 8 layer PC boards so changing your cad drawings no problem. When I retired, I swore I would never do another board but NEVER swear you won't do something!   I just don't every want to reinvent the wheel when someone has done such a nice job.

There are so many new improvements, variations, It is most encouraging to see all the success in building the basic device.  READ and RE-READ the complete Stiffler article, noting especially the waveforms and the 3rd harmonics on the basic waveforms.......The use of the sniffer coil on the scope is MOST helpful to see the artifacts that are important and enhancing them.

Spokane1 is doing some really nice work, Ossie Callanan in AU is also doing some most excellent variations also.  Our Moderator is also really in there with both feet, very good work Stefan, Amigo,everyone with a working model, the list just goes on and on.  With this pool of  creative people, things are going to progress rather rapidly I think!!!

The problem with positive feedback and making this thing self-powered, with excessive output is the next challenge I look forward to...Just remember if you do get positive feedback, you must have a foolproof method to clamp/control the output or you will end up with pools of silicone smoke and a non-working circuit....I suspect this basic circuit in an optimized configuration is definitely OU but again, proving it will be most challenging..Dr. Siffler is miles ahead of the rest of us in this area I believe.......A calorimetric approach using resistive heating probably will be the best and most conclusive way to put the question to rest......I suspect this will happen very soon......but, keep building, trying new things, new semiconductors, various bias, coils, etc.........the sky IS the limit!!!!!.

Ben K4ZEP

[hartiberlin]

Okay, this is now important.

Watch my new video over here:

http://www.youtube.com/watch?v=Oj299cuYGeg

I am using a bit different circuit than the Ben Thomas
circuit.
I have a 1 nF cap at the collector of the BC555 C , which goes to the first Litz coil
on the core.
My coupling to the base of the BC 555 C was made via laying just
a trimmer cap onto the core, it is only connected to the base, not anywhere else,
so this just couples via some pF stray capacitance to the coils on the core.
The basis was pulled up via 330 Kohm to +12 Volt supply.

I will now modify my circuit to the real Ben Thomas circuit and try to see,
if it will also work this way and what waveforms I will get then...
Regards, Stefan.

[hartiberlin]

Who wants to see my video in a bigger resolution,here it is
in 720x480 30 frames/sec DivX.com codec:

http://overunity.com/stiffler/stiffler_harti05.avi

Regards, Stefan.

P.S. Put the 2.2 uH helper coil directly in front of the AP or
directly onto the core additionally.
Or replace it, as I did with a second litz coil.
This will help to light up the LEDs much brighter !

[derricka]

@ Ben K4ZEP

Thanks Ben, if you (or anyone here) still want to get a PC board made, I put ordering instructions in my earlier post for you. If we can get a few people together on an order, it would cost even less, so if you want split an order with me, or other forum members, just let me know.

Derrick