Resonance and high frequency

[Classic]

Hi Classic, i cannot promise I'll be able to replicate your exact build, but I'd be grateful if you could make some videos, even if short. The videos you made previously with the ZVS, pancake coils and an iron were very helpful.

Before the end of the year I was working on two Don Smith related concepts:
Sympathetic resonance coupling - LC circuits tuned at the same frequency should couple with each other for higher output. I did it with three coils at around 2MHz, the coils have Q of about 300. I have not finished doing all the experiments I wanted, but so far I have been unsuccessful. More coils are needed I think. Or perhaps I still have something to understand to make it work. Because so far if I load any of the coils, the output of all the coils goes down. If the coils are not loaded and put close together, the output of all coils goes up, but what use is that if I cannot use the power.
1/4 wavelength primary, 1/1 wavelength secondary - when using a 1/4 wavelength primary and at 1/4 frequency, it should be possible to ring the secondary with reduced duty cycle. I was able to get down to 9 percent duty cycle and still get the same power output. It was tricky to get it right, I made mistakes in computing and cutting the right lengths of wire. But yeah, that works.

What I want to focus on next is high voltage. At least 1 kV with earth grounding to see the point when the electrons harvested from the ground will start bringing the amperage.

Lately I have done a lot of testing for isolation, I mean building my own isolation transformer as I won't spend thousands on such a thing.

Key points are:
1. Frequency, preferable above 20khz where we don't need to deal with ohmic resistance due to skin effect. But can work fine with less ... in my case 17.6 khz.

Looks like "what if I did this ..." with his main circuit driven by a single 2N3055 transistor works on higher frequency (2 Mhz or higher ... there is another 2N3055 that works on 6 Mhz) is the most efficient and cheap if you can make it work.

2. The only energy we spend is to create an oscillating electric field. I am using the pancake coil system to just obtain some 220 v at 17.6 khz ... when system runs empty takes 5.5-6.5 watts from dc source (batteries or laptop charger). So, on secondaries in series I have an earth connection on outside diameter and the inside wire output goes to a resonator (2 m long copper pipe 15 mm covered with insulation tape). As per Lorrie Matchett design.

This is important ! This is the isolation part where anything we take do not load the providing circuit.

So, this part is where we can use high voltage extrem low current as we don't need power to disturb local environment, we only use minimum current to allow the system work !

3. If you decide to use high voltage bear in mind you need to step it down to a usable level in next stage. I prefer to use less voltage as things become more expensive and better insulation is a must. What I am doing is rather artisanal with very low budget. But, as I said before, very little increase in input voltage is magnified in output many times, especially when we don't bother about power output.

4. Pickup coils. Wound direct on the insulated copper pipe. Single layer. You can try one long coil or many short coils. I have tried many using different wires and still need to do more before deciding.
Using same wires I used for pancake coils yield less power, using magnet wire 0.5 nearly doubled the output. Using multiple short coils (in parallel is the only option obvious) I noticed they are additive on voltage ! 😂 More to explore in gap between pickup coils versus single long coil per pipe. Coils tested are 4-12 turns each with a gap of 1.5 times the length of coil between each coil.

Because we have only one end usable, all output must go in a single bridge rectifier where instead of neutral line we use a another separate earth connection. Each short coil (I only have tested 8 ) add voltage and improve current available ... I am speaking about 2.6 mA per coil for the moment, tested with 1.5k ohm resistor. Voc is high so, think how solar panels works with high Voc and the need to control it before dumping it ! I have toasted way too many things. Not sure yet if voltage control should be done before or after fbr as I don't have unlimited resources to experiment.

5. Warning ! Especially if you use high voltage, be mindful as electric field is radiated on a large area
and any metal surface is loaded.

I hope someone finds this useful.

[MerLynn]

I used size=4, to emphasize that Tesla did not invented AC Currents on my original post.
And here you used size=6, like I have written it that way.

All I did was highlight the text as a Quote. And it appears in the reply box,
If my computer alters the text size I did not know it or did not see it.
Its an error within the system.

proven Sciences.

Science is to question everything. Nothing is a 'given'. Its all stated as a Theory. Theories are not 'proven' they are accepted until proven otherwise. I have some of that 'proven otherwise' lab experiments.

[Classic]

Honestly, until few days ago if anyone would told me that coils added on parallel increase the voltage and not the current I would say is out of his mind. It seems counterintuitive and somehow against the "teachings", but is real ... and I still can hold them with bare hands without any harm. Been reading some old papers where a medical observation says electric currents above 10 Khz do not cause any harm for humans ... eventually some diseases can be cured in this way at certain frequencies (like RIFE).