Mmmmm! Confused! Did I miss something?
1. It is not Tesla reverse. The 2 times 20 turns should produce high voltage. (At least conforming my brain)
2. I do not underdstand the function of the components from + to NST
rgds John

Patrick I want to join the others in expressing my sincere thanks for the wonderful work you have done.

Everytime I read sections of the pdf the fog lifts even more.My favourite chapters to date Chapters 3, 5 and 6.Yes the pulsing devices.

Thoughly enjoyed the Forensic/CSI like presentation on the Toroid Device,Utkin document and the Double Tuned Crystal Radio.

I am surprised to see the numerous patents that has been issued.Many based on the principles discussed here, magnets coils, caps,spark gaps, resonance.

If anyone on this forum has not seen Kelly's PDF, I recommend that you get it.In fact it was that pdf that got me started in the first place.

Thanks again for the step you have made for all of us as your work definately embodies the spirit of sharing research and discovery!

Still learning,

Ged

I would like to replicate this and wondered if someone could answer my questions.

1. Do the primary and secondary need to have a ratio of 1:4 for length of coil and weight?

2. What is the turns ratio? If the primary has 2 turns, does the secondary have 8, 4 CW & 4 CCW?

3. Can car audio cable be used as it has many strands and is made with good insulation against interference?

4. Is there any two wires available off the shelf that have the cross sectional area ratio we need? If not we could do a group buy on some. Any ideas?

5. Can anyone make a rough parts list to build on?

6. Can the coil be adapted for just voltage (no1 coil on Tesla's patent) by just making the secondary turns CW? This will power any of the bulbs that people are using on the joule ringer thread.

7. Would making the distance of the coil turns a ratio of 1:4 make the resonance stronger?

8. Almost all Tesla coils that make sparks have a pankake (planar) coil as the primary. It makes sense to me that this would work better too. The spacing of turns would probably make the resonance stronger too?

9. This is the big question, but just rolling around in my head! 'theoldscientist' on youtube said something to me that made me realise that the magnifying transmitter is actually wound transmitting coil CW and receiving coil CCW.

Therefore all receiving coils place no extra load on primary! lol

The magnifying transmitter is a bit like a hairpin circuit, but sending scalar waves through the ground.

Your thoughts on any of these questions/ideas hopefully will carry us forward little.



PS Also thought this might be useful to some people who have never seen it before:

Tesla Memorial Society - VIDEOS and PUBLICATIONS

hi all

just an idea to get high voltage very simply

thanks to young french guys ( at incroyables experiences ) modified circuitery

hope this can help

good luck at all

Laurent

High voltage very simple generator 1 .wmv - YouTube

Something I believe relavent to the discussion:

Leedskalnin's Double Helical Magnetic Interaction - YouTube


Excellent Woopy, does it have to have 20 turns to work?

Sounds like it would be good with Metglas or Nanoperm.

I cant seem to find the pdf anyone gota link

http://free-energy-info.co.uk/PJKbook.pdf chapter 3 page 40 onwards is Patrick's rendition of Zilano's work Dave and also visit chapter 5 page 57>128 the work of Utkin is all very relevent particularly re the coil windings... I would also respectfully suggest a visit to this forum thread Tesla- Kapanadze generator paying particular attention to T1000 (Its quite clear he's also got the Tshirt)

Hello, kdkinen here
interesting notation, im not sure i understand it lol
You are prob explaining something, but i am taking pos from the outter ends of L2s, and neg connection to center tap, as the usual.

After looking over some designs i am compelled to look a second time at the Stout Copper Bars / Hairpin Circuit.

In my vid 13 i basically have "that" hooked up, but didnt realize it LOL

That was the best light i have gotten with induction, so im gonna play around with the NEW High Freq setup, with this older design...
Don Smith Device Project Part 13: B&W Inductor Coils - YouTube

Don Smith Device Project Part 16: 30 volts input & FULL brightness? - YouTube

Hi guys did you see this vid with very simplified circuit using a MOT lighting 10 150w bulbs?

Spark-Gap Generator (SGG) - YouTube

Another interesting vid with a bedini to a car coil and spark gap creating more current:

Bodkins/Bedini Experiment with SPARK-GAP to Ground -- watch out ... ZAP CITY! - YouTube

hi zilano good work your doing and all
so are we saying about 4000v in and 12v out ? and are they the same eath rod or separate eath rods ?

Hi Zilano

Can you please help me with custom made high voltage NST which I made today per instructions in PJK book. I wound 4000 turns of 0.315mm diameter wire on 50mm diameter and 140mm length PVC tube. I then wound 8 turns primary with 1mm diameter stranded wire and 4 turns for feedback.

The problem is that I cant get higher frequency than 9.8Khz. If I put ferrite rods inside PVC tube the frequency drops to 3.5Khz. I have to use 27ohm resistor instead of 220 ohm resistor to get better output.
I put different capacitors parallel to 8 turn primary but frequency does not change.

Do you have any suggestion what to do, to get 35Khz HV frequency ?

Here is the picture of my setup, scope shot and circuit used:







JoeFR

FYI:
Today I manufactored and measured some air cored coils one being CW and the other CW/CCW. Apart form the split winding type they are identical.
Attachment 9985
core diameter:...76mm
core material:....cardboard
turns:...............74
wire length:.......18m
wire diameter:....1.2mm
wire spacing:.....1.2mm

It was very surprising for me that both coils perform at about same natural resonant frequency of about 2.2 MHz. Yes! The cw/ccw in series perform identical at resonant point!Attachment 9984
This frequency is more than I expected!

The cw and ccw alone perform at about 3.3 MHz. (no pic)

Those were the only resonant points found between 20 KHz and 25 MHz.
I remember Don talking of a frequency in lower MHz range. So this seems to be true.

Inserting a bar of ferrite magnets did change slightly the resonant point but there is no change in the max voltage. This is a hint that these kind of ferrites perform at lower frequencies only.
rgds John

Just some hints. Might be very basic but possible!
- Have you any large capacitance in parallel to primary load coil?
- Are you shure not to have C and E terminal interchanged (3055). Transistors perform as well in this case but very lazy and have very poor current amplification.
- It might be a problem of inductance. These kind of transformers have usually the size of a TV flyback transformer. So the length of wires is considerably shorter. (not shure about this - just a hint)

Besides:
Please note: Pattrick shows the principle only. His schematic is no elaborated instructable.
- Protect the base from excessive negative voltage. 5 V minus is ok but at intended operation it will be more. -> Insert a diode between emitter and base in order to short the neg. voltage (reverse to direction of BE diode). This will speed your transistor up as well.
- Protect the collector from high voltage not to exceed 70 V absolute max. (Bedini uses small neon)
- Prevent excessive base current. Transisors become lazy and hot. So you need to adapt the base current to operation voltage.
3055 current gain (collector current vs. base current) at 4A = 20 / 10A = 5

rgds John

Winding anything, even electrical insulating tape, over 4,000 turns of fine wire will ruin it as an inductor.
Also winding many turns over PVC not as good as glass, ceramic, insulating ribs or even dry card.
Just anchor the ends, as per John's photo.
High voltage step up windings tend to be multilayered to maintain field coupling with the energising primary; these being quite different to the spaced+resonant 'energy' coils.

Hi,
fortunately I have access to an older Wandel& Goltermann RF level metering and wobble equipment (15 years ago you got a house for that amount of money). Weight about 160 pounds.
Attachment 9986
generator:PS19 , level meter: SPM19, display unit SG4 .
After hours of manual study I fortunately got now the very first success.
With this equipment I can measure coil arrangements step by step in order to tune resonance in all elements. I am happy if I can forward some measurements of general use.
Rgds John

1.
If you happen to have a short circuit in your secondary between windings you have a considerable increase in inductance of your setup. Your reduced secondary voltage is a hint for this fact.
Examples:
- In times of plain old telephone systems they coverd the windings of relays with a jacket of copper. Those relais did open very very delayed.
- You can use a transformer as considerable choke if you short circuit the secondary winding.

2.
If you try to exceed 20 KHz in your setups additional effects arise. So follow the hints of GSM as well.

rgds John

Hi everyone,

I had to step back from the fire. Haven't been reading the thread for a while. Holidays and work had lots to do with it.

However, I did quite a lot of experimenting lately.

I have been playing with resonant flyback drivers, 555 timer flyback drivers, and 120Hz NSTransformer drivers. And I have played with all kinds of coil, gap, and capacitor configurations. I have excited the coil with one wire. I have run the exciter loop with various configurations of ground. I tuned my coils with an oscilloscope.

I see now that there are about a billion ways to excite and resonate a coil.

I had some circuit configuration that was causing the neon lights in my workshop to flicker.

I guess I don't have a question right now. I just wish I had taken better notes.

This is what I have been working toward. I have the flyback driver and coils in place. I'm interesting in the C that you put across the power coil on the flyback. Is that intended to adjust the freq of the flyback? I have the hardest time getting the freq. of the flyback up to 35khz. But I don't think it matters given the circuit you show. I get lots of RF coming off the caps / coil combination in that arrangement.

I don't know what to look for in the secondary, though. I have an O-Scope across it and I see no voltage. Haven't tried to connect anything downstream from this yet.

Question... are two 120V varistors equivalent to one 240V varistors? I got a couple from RadioShack. I'm determined to do this with components from RadioShack. :-)

My coils resonate at 34khz +- 1khz. How close do you think these need to be. Tough to get really fine tuning.

Your downstream shows no diodes / rectification. You go straight to a 20:1 transformer to get DC. I know that 35khz looks a lot like DC, but really? No smoothing?

J

Hard to get resonant drivers to push a flyback at a freq beyond it's natural freq. I have been playing with this a lot lately. Also tried 555 pulsed driver. Works good right around the natural freq. of the flyback, but no other frees. :-(

Love Nassim!

Hi JohnStone, GSM, jharmon

Thanks for your suggestions. I tried all your suggestions, I checked connections and everything is connected per schematic. I removed insulation tape from secondary coil, I put diode across Base and Emiter of 2N3055 transistor.
I tried different turns of primary and feedback coil.
I also tried my mosfet kacher circuit but the frequency is the same 9.8Khz.

So it seems this is the natural frequency of the secondary coil and we need another design to make high voltage 35Khz power supply instead of the NST.

I want to make my own NST 35Khz power supply. I bought one on Ebay and it was working 5 seconds because the HV ferrite core transformer has arcing wire wich melted the insulation and killed the NST.

I am looking for your suggestions how to make custom and simple HV 35Khz power supply which we can use in Don Smith replication ?

Best Regards

JoeFR

@Joefr
This driver circuit looks similar:
2n3055 flyback driver | Kaizer Power Electronics

"The frequency of operation in this circuit is determined by the capacitor across the transistors emitter and collector, experiment with the value of this capacitor to find the best performance, this capacitor have to be a good film or foil type (MKP/MKT)"

@Joefr
Have a look here
Flyback transformer - HvWiki
Take care of this difference in working frequencies >
Driven near 15 kHz (if television component)
Driven between 30-150 kHz (if monitor component) <
in that site is a bit of good info.maybe is a reference point for your project.
If I am not wrong,the 2N3055 is not that good as an high frequency switch
but not sure if this is true.Other folks here maybe know something more
about it.
Regards.

zilano

How can I produce NST with two positive outputs and negative at center ? is this possible without diodes ?

Hi Zilano thanks for explanation

I am looking for a way to build high voltage 4000 - 6000 volts 30 - 40Khz power supply, driven from a 12V battery which is suitable and which I can use to replicate Don Smith - Zilano device.

I dont want to use flyback transformers or made NST.

I want to make my own HV source so that I am not dependent on purchased transformers.

I am looking for help how to calculate secondary coil, how many turns of wire, what size of the PVC tube on which is secondary HV coil wound. How to calculate HV secondary coil properties so it will oscillate between 30 - 40Khz.

Best Regards

JoeFR

Hi Zilano thanks again

OK lets forget home build custom NST.

I have found one 12Volt powered model which can vary voltage and frequency:

Is this a good choice or do you have any better suggestion?

JoeFR

Attached Images

PVM12.jpg (106.2 KB, 123 views)

Hi ALL
I did some measurement at my bare TV FB (home made oscillator control disconnected).
Primary: 10 turns of about 60cm total wire lenth.
Attachment 10000
Natural resonant frequency = 6.5 MHz

Secondary:
Attachment 10001
Natural resonant frequency 365 KHz.

Those resonant points are the only found between 1 Hz and 25 MHz.

Conclusion:
- Please take in account that the natural resonant frequency depends on wire length (Hint from Don Smith).
- Patrick drew a capacitor on primary side in order to align the primary resonant point to the secondary (with higher wire length).
- Zilano is right in that the primary control should kick the aligned coils in order to resonate where they feel comfortable.
- So either we have a fedback coil (see Patrick) for transisor control in order to operate at natural secondary frequency (like joefr having long primary wires) or we have a fixed kick control not depending on any feedback. I am not shure about the switching speed of HV diodes. This might be an issue.
- Another way could be to harvest the BackEMV at switch off only. With too slow HV diodes this might be the only slice to harvest as HV.

Please accept that I did not think these irtems to the end but I want to share asap.

BTW:
I will wind some additional coils Don like (see post yesterday) in order to measure and publish different combinations (cw/ccw, 2 coil, 3 coil, short circuited coils, earth connection ....)
rgds John

Hi folks, my input this evening is that a very simple way of ensuring easy selection of weights and lengths is to use car audio cable.

You are pretty much guaranteed to get a near perfect 1st time round match if you use say 1 x 8AWG & 4 x 8AWG either tapped up or braided (maybe that will cause more turbulence of the magnetic field and more current?).

8 awg | eBay

The markings of every foot are nearly always on the insulation. Most decent car audio cable is made of very fine strands and the best are 99.9% oxygen free.

Wow, I didn't even realise LCR meters are so cheap.... in my head they were going to be 1000's.... lol

I've got a 600watt high pressure sodium bulb to donate to kdkinen for a spark gap if you would like to try?


Can't the spark gap be got rid of, just like the DRSSTC?

http://drsstc.com/



The Double Resonant Solid State Tesla Coil (DRSSTC) is a new type of Tesla coil that is set to drastically change Tesla coiling! The DRSSTC uses IGBT transistors to drive a conventional Tesla coil. Four IGBTs, in an H-drive configuration, replace the conventional variac, high voltage transformer, and spark gap of a conventional Tesla coil. There is no longer a heavy variac or transformer. The power waisting spark gap is also eliminated.

Well.so far of what I`ve read Tesla`s writings, works & researches
that is not a good idea.aka your or others proposal
to substitute spark gap with an IGBT device or DRSSTC.
Tesla states that he for himself disliked the changes other researchers of his
time made to his plans & schematics.an example of them was Marconi
who put some fancy modifications in place of a spark gap.
I am sure Tesla knew very well what he was talking about.
Anyway. I wish to everyone here Only Success
as that is what we all are looking for
cheers !