Donald Smith Devices too good to be true

[Wistiti]

Mine is a kind of purple...

[soundiceuk]

Does your electrode (anode/cathode) are cold when firing???

the test I have done with mine they became hot...

Your's isn't running under resonance in Bruce's circuit yet.

What colour is the spark Wistiti, blue?


What colour is the spark Mwtj, white glow?

Got any pictures?

[tesluh]

need advice please, This relates to Don Smith devices which is why I am posting here.


Lets pretend I was building a tesla coil, the secondary has a resonant frequency of lets say 150khz. The goal of course would be to make the primary also have a resonant frequency of 150 kHz as well right? assuming so, what circuit and components would you use to power the primary coil? It can use car battery or mains power, either way, doesn't matter. and with that circuit how would you adjust the primary so that the frequencies matched?



the reason I ask is because I have hundreds of hours of reading, hundreds of hours of videos watched, way over a thousand dollars spent on neon sign transformers and capacitors and spark gaps and wire and test equipment etc hundreds of hours out in the shop testing different circuits and have looked at and drawn well over 3 hundred related don smith type schematics and with the parts and experience I now have, I still couldn't assemble and build a working tesla coil primary side.

I could spend a few hundred more on some parts that I believe would work (and follow a schematic I also believe would work), but before flushing more down the drain I wanted to get some opinions. Looking for schematic/exact parts to match the schematic/tuning procedure and can only find one good example of that anywhere so far.

Continuous operation would be necessary.

Thank you!!!

[Wistiti]

Strange thing with the spark gap that there is cold air flow coming from it.A little cold breeze. What is that about? Cold electricity?

Does your electrode (anode/cathode) are cold when firing???

the test I have done with mine they became hot...

[Wistiti]

The attached document is worth a read:

REALLY interesting!!!
And it is an old document. He may have done great improvement since then...

[soundiceuk]

Is it the silver lining on the golden answer? Or is that too easy

Something lost in translation there?

[soundiceuk]

Someone found the nautilus... Captain Nemo is going to be a bit angry when he see's all that stuff missing !!! Nice work Bruce !

That isn't Bruce's build.....

You'll cry for joy when you see that!!!!!!!!

[soundiceuk]

The attached document is worth a read:

[dragon]

Someone found the nautilus... Captain Nemo is going to be a bit angry when he see's all that stuff missing !!! Nice work Bruce !

[Mwtj]

Taking a guess at the metal.

Tantalum?

[soundiceuk]

The coil is on old coil just for demonstration.

The PPV Stage 2 housing can be seen on one side and the PPV Stage 2 anode and cathode materials are blurred on the other side.

One of the materials is common and the other is rare.

Too rare!

But can currently be bought from ebay across the world. It is not radioactive.

This could be synthesised but that's going to cost money so for now we might as well get the best out of aluminum and steel.

The PPV Stage 2 is twice as good as aluminum and steel can be.






This is an external portable unit to house super caps.

[Mwtj]

Some updates.

Moving the whole setup outside of the house. Got a lot of problems with usb hubs that do not work anymore when the system is on. A couple of weeks ago my motherboard died. Maybe that is the cause of the blown motherboard. So made a bench in the shed.

Looking for new grounding rods so i can try the two ground system. Any advice on this?
Got two grounds. But they are not that deep about 10 feet.

Last time the circuit ran i used a 110 watt light bulb. The filament lit a little but could not short it. So that needs some work.
The black wire on the primary is not enough anymore. With a screwdriver/ hand close 1 inch sparks would flyover from the windings.

At the higher voltages the primary will shake because of the frequency. You can feel and hear it. Like a iron core transformer sound.
Strange thing with the spark gap that there is cold air flow coming from it.A little cold breeze. What is that about? Cold electricity?

Need too insulate everything further because of the higher voltages. Not using anything metal anymore. Metal L-bracket for capacitor causing arc over between it.

So that is what i have been doing. Finished today with bench and rebuilding the system. Parts for the spark gap are coming. Polished aluminium sphere and steel tip. looking into good grounding system.

[Wistiti]

Primary done!

Still waithing for a signal generator for tuning to resonance at 500khz...

[tswift]

Yes, I realized that in my pre-coffee morning state I forgot to address this point. I think you are correct, with perhaps one small qualifier. In my numerous bench experiments of Don Smith-style circuits I have tried both ways, with resonant caps on the secondary and without. You are correct that it doesn't seem to make a big difference as far as power transfer. I have measured the power throughput both ways and depending on the configuration sometimes the resonant caps seemed to help and other times didn't make much of a difference.

The qualification has to do with my understanding of the nature of radiant energy and the phenomena at work in the Don Smith and all similar devices. The capacitor is universally seen as the receptor of this energy. Based in no small part upon my previous readings of this thread, I have come to understand that the voltage environment AROUND the capacitor matters. The voltage which would be attached to the case of the capacitor, if left at floating potential. You can easily take a capacitance meter and measure the terminal-to-case capacitance of a metal case motor run type cap, and it is on the order of 1000 to 1000000 times less than the terminal-to-terminal capacitance. The resonant caps on the secondary could be playing a part in receiving radiant energy, an effect which would be missing if they are not present.

[dragon]

I contend the secondary ( output ) coil does not need to be resonant, only the primary. Dealing only with the primary resonant circuit for adjusting peak output makes it much easier to deal with by reducing the overall variables.

As an example, lets say you have a 50 turn primary and a 5 turn secondary. The energy on 5 turns of the primary is the same energy that is being transferred to 5 turns on the secondary. So, if you could tap 5 turns of the primary circuit, you have the same energy that is being transformed on the 5 turn secondary ( with less losses ). The only problem with tapping the primary is, generally the wire is smaller and wouldn't handle the current generated or would restrict the potential output. Also, no isolation between primary and secondary.

Note in tesla's patents the transmitter primary has to be resonant with the secondary in order to maintain resonance - the receiver, however, has one coil resonant with the transmitter and the output is not a resonant circuit. Resistive loads or converting HF AC to DC, neither really care about the frequency. The only reason I can see to make the output resonant would be to convert the frequency to function with a proprietorial load - which could be done by converting to DC and driving an inverter or secondary circuit for that load. Bruce's circuit is basically the receiver.

Personally I don't believe in "overunity", it's a term used to describe the fact that we don't understand where the energy is coming from - the gain in the system is a cause of an outside source. As we increase our understanding of this source, our circuits will reflect what we've learned. ( or haven't learned ).