Mr Lester J Hendershot's magnetic generator.

[pjotterkjen]

Looking for ring magnets supplier!

Would anybody know of a good supplier of ring magnets? I have been looking around here and only found one store so far, they're specialized in all sorts of magnets but they haven't got what I'm looking for and custom orders have a minimum of 3000 dollars... that's way out of budget! They do have ring magnets but the inner diameter is at most 1.5 inch, too small and I don't know if it would be possible to increase the inner diameter with machinery.
What am I looking for? Core ferrite, polarization over the diameter, outer diameter about 3 inch, inner diameter about 2.5 inch, and thickness about 2 inch, or that could be several aligned ring magnets also. If they have a website please include the link.
TIA!

[thx1138]

Magnet strength

Hi thx1138.
I love to read of your magnet findings thx, but do I wonder if our modern magnet versions might actually make it more difficult for us to realistically replicate a Hendershot generator ?

I will post whatever I find. They are supposed to arrive next week.

Since we don't really know anything about the magnets that were used everything is a guess at this point. The only reference I've seen is to a "radar magnet". My guess is that would be relatively powerful even in the 1950's. There was AlNiCo and SuCo at the time and, indeed, neodymium will be strong per volume but we don't have dimensions either so there's really no way to determine what the magnetic field strength was. Getting AlNiCo or SuCo magnets manufactured for the project is way out of my budget and I haven't been able to locate any 1950's radar magnets. Even if I could find one or two that would be a problem for replicators and scaling.

It kind of surprises me that more info wasn't given on the magnets because they such a critical role in the circuit. On second thought, I guess it would go a long way in hiding the critical info.

Part of my testing will be to determine scalability factors should I ever get anything working. In that regard more magnetism in a smaller area would seem to be a better bet than less. Even at $250 per 60 Watt bulb it still seems to be a non-starter except for emergency power. And doubly so if it is not scalable. It seems like it should be scalable because of the early (20's) reports about the work with airplanes but, again, at this point no one knows.

The bottom line is that no one knows whether stronger would be better or worse and there's no way to tell until we get one working. So - Onward, through the fog! So they said on the Titanic also.

[GSM]

Thought you guys might get a kick out of this ; Hendershot Generator Complete "do It Yourself" Kit Includes 2 5 Hour Video | eBay

Too many liars in today's world !
I would recon that it could not work as Hendershot demonstrated with those non-original values of electrolytic capacitors, also without any foil type core-capacitor tuning arrangements.
I don't see a proper horseshoe magnet being provided either - large good ones are not cheap, and very difficult to find these days.
Complete ?

Do not miss out on Morpher's postings yesterday -
http://www.energeticforum.com/renewa...tml#post248769


Cheers ............. Graham.

[ChangLallam]

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[Xenophanes]

Thought you guys might get a kick out of this ; Hendershot Generator Complete "do It Yourself" Kit Includes 2 5 Hour Video | eBay

Pricey!

Please note that I am NOT the seller of this item

edit: somebody bought it.

[pjotterkjen]

Hendershot MK3 circuit considerations

6. Circuit diagram is BOGUS and lost to time. There are several "speculations" about this circuit, but no one can say for sure what the real circuit is. I tend to think the clues are in the components themselves, which have a more specific specification. The circuit can possibly be reverse engineered.

Hi morpher44, good to see you back on the forum and with a compendium of notes to ponder over.

With respect to note 6 and the MK3 device, I do agree most of it published is BOGUS - on purpose (to distract) or not (incompetence). But we do have the pictures that crusty published in his document on overunity.de. I asked him where he got them, and he told me that a person he contacted (who received the device from Aho's widow - this device being one of five versions that Aho built under instructions of Hendershot and which supposedly all worked) took pictures of this device and crusty published them in the document covered up with letters to prevent abuse. Then he attempted to reverse engineer the circuit diagram, which we also can look up on overunity.de. The result is a slightly different circuit.

And while looking over that same forum, I found that crusty had attempted to relate his reverse-engineered circuit to the simplified (but electrically correct) circuit of Fuchs, another user on overunity.de with an excellent documentation (also a must read). The resulting circuit is at least amazing, and shows us there is a reality that this circuit is the best one to base testing upon.

I myself am concentrated on the MK1 device but follow the forums very frequently to see any advancement or comment on my own stuff.

Anyways, I'll post this circuit diagram crusty posted on overunity.de, hoping this will invite anyone to build this and publish the findings. If this was already posted my apologies.

[GSM]

Hi thx1138.

I love to read of your magnet findings thx, but do I wonder if our modern magnet versions might actually make it more difficult for us to realistically replicate a Hendershot generator ?


Hi Morpher.

Wow - what a summary !!!!!
I went through every line, and there is nothing I would challenge,
so please folks this is only my positive response, if you have just come here as a last post, then do go back to here and digest the years of experience morpher has encapsulated therein -
http://www.energeticforum.com/renewa...tml#post248769

Yes, I too feel that Hendershot was using a magnet-bar-solenoid, back-EMF like pulse to generate a higher resonated frequency of oscillation within his specialised core arrangements, thus even after everything had been set up correctly an initial tuning would still be critical.

However there may well have been additional cap-core outputs and thus other connections I am still not aware of.
Crusty's file was made available via courtesey of N20Wolf on your own thread, and I relate to photographs therein -
http://www.overunity.de/index.php?ac...downfile&id=14

The photographs have good definition and via Adobe may be viewed in much larger sizes than those on the original file.
Check for foil capacitor like connections beneath the core overwindings - esp. near the bulb socket on the board.
Were there two hand wound capacitors ? Were they series connected ? Tuned No2 windings on Crusty's circuit ?
We have read that crock-clip leads were used to make the generators run.

Cheers ............. Graham.

[morpher44]

another idea --- SUPER CARBON MIC

Hendershot was rumored to have put CARBON rods in his coil or carbon in his hand made capacitor.

It occurs to me that one interesting idea is to attempt to make a SUPER carbon microphone. The piezoelectric effect can be exploited on a much larger scale to generate a bit of power from SOUND energy.
In the old days, you didn't need much power with these guys.
Imagine a setup that makes a lot of noise from very little power.
Imagine also a setup that generates power from sound.

We are surrounded by noise pollution.
Perhaps with a coil-capacitor-carbon-mic configuration, a bit of power
could be harnessed from the noise.

Also, along these lines, if you CRUSH the crystal material within
a capacitor structure, as the electric field is intensified, the piezoelectric
effect intensifies. So capacitors and crystals are a good fit.
One likes to squeeze, the other likes to be squeezed.

From Wikipedia:
"An illustration of the amplification provided by carbon microphones was the oscillation caused by feedback, that resulted in an audible squeal from the old "candlestick telephone" if its earphone was placed near the carbon microphone."

[morpher44]

harnessing the wheelwork of nature

re: The Hendershot Magnetic Generator.

I also think, a good approach is to back up a bit and think about what power you want to harness.

Coils can pick up power from oscillating magnetic fields. Fields that don't move generate NO power. Weak fields generate NO power.

Metal cylinders (or metal) can pick up Hertzian waves, or Tesla waves, depending upon your perspective or frequency target.

These WAVES need to come from some source. Most sources are pretty weak. Radio waves are weak. Mechanical waves like sound are weak. Physics tells us there is more power in the HIGHER frequencies (toward LIGHT). Converting high-frequencies DOWN to slower mechnical frequencies for our use comes at some loss.

Magnets already have a magnetic field -- but it is not moving.
It is possible to move the magnets field with a solenoid and bar.
This can be done with "little" power. This is not unlike how a pully
can amplify the lifting power of a rope or a lever can lift a heavy rock.
You can utilize something BIG -- in this case a pre-existing magnetic field,
and lever it so that it oscillates -- with little power.

The challenge is to lever a very LARGE magnet with a very small
amount of power. You want to lever the magnet so that it sprays
its oscillating field over a coil structure for pick up.
That "receiving" coil will generate power since it sees a changing flux.
The coil need not physically move. The magnet too need not physicall move.
Anything that moves has inertia, creates heat, and takes more power
to move. So let us move something that is EASY to move -- the field only.

Further, the geometry could be such that as your oscillating field
starts to generate power, some of that power could be fed back,
positive feedback, to build a LARGER field, and so on, and so on, up
to some LIMIT. There will be losses due to HEAT and resistance, etc.
Any load you put on it will be detrimental, but if the load resistances
is LOW -- like an incandescent bulb for example -- that load could be just
thought of as WIRING in the circuit.
This is very much like the Tesla Switch notion in that current just
flows back and forth -- w/o draining batteries. In the Hendershot case,
however, the CAPACITORS are your temporary "batteries".

There can be a slight amount of power coming from the OUTSIDE of this closed circuit via mutual induction. Some have speculated that schumann resonances could be tapped for a "startup" power.
There are also "lighting strikes" around the globe, in the range of 100-200Khz, that are always present and create little spikes in circuits.
Hendershot probed around with wires, perhaps going for that quick little static discharge (via triboelectric effect), to create a bit of startup power
for the self-running circuit.
You can experiment with triboelectric surfaces to create such start-up power.

[morpher44]

Hendershot magnetic generator speculation...

1. Magnetic field is oscillated near stationary coil. Power can be had this way. No need to move the coil. No need to move the magnet. Only the field need move.
2. A bar placed between a solenoid and a horseshoe magnet causes the field from the magnet to BEND with North bent one way, and south bent another way. Solenoid can be used to OSCILLATE these bent fields. The fields are FREE in that you do not need power to create them. They are already there from the magnet. You only need a little power to the solenoids to move these BIGGER fields.
3. Hand made capacitors are "tunable". This implies Hendershot did indeed care about frequency and tuning.
4. Solenoids were physically adjustable. You could move them towards or away from the horseshoe magnet. This too implies "tuning" or a magnetic amplifier-style control.
5. Hendershot was very specific about coil diameter, number of pegs, sizes of pegs, wire gauge. He had worked out a very specific circuit.
6. Circuit diagram is BOGUS and lost to time. There are several "speculations" about this circuit, but no one can say for sure what the real circuit is. I tend to think the clues are in the components themselves, which have a more specific specification. The circuit can possibly be reverse engineered.
7. I imagine the two fields around the cylinders need to be equal and opposite. I.e. when one is going UP with RIGHT SPIN, the other is going DOWN with LEFT SPIN, and vice a versa. This has implications on coil winding direction, and how you hook things up.
8. Solenoids and horseshoe magnet are balanced. With the smallest amount of power possible to the solenoid, you need to work out how much of a field can be created to balance the magnet. This implies a great number of turns around the solenoid. There are formulas for the magnetic field around a solenoid. Make this MATCH your magnet with the "least" amount of current. You might need very low-resistance wire, high quality IRON (or FERRO material), high-Q coil. You might also experiment with different solenoid coil winding styles, and geometries. Solenoids convey a BIGGER field if the cylinder is not long, but has larger diameter. There is an "ideal" ratio of diameter to length to work out. Read up on coils and you'll start to get a sense of what the ideal shape is for solenoid.
9. Be "less greedy" about what you try to power with the generator. Start small and attempt to power an LED (Avramenko plug).
10. Don't be afraid to power with a "chopper" circuit at first to work out the best circuit, coil placement, magnet-solenoid-bar, placement, etc. You can use a "relay" very easily to make a chopper circuit - or use solid-state chopper - or Joule-Thief... Think of powered-mode as training wheels.
11. Lastly, the notion of "self-powered" is a bit misleading. The coils might need to be placed over running water with minerals, or up against a wall in your room near your house main. I had worried that Hendershot may have been coupling with the power in his own house. The real test for self powered devices is to take them far out into a field, away from all sources of electro magnetism (except for what the Earth's field might be providing).

[morpher44]

frequency (or perhaps Frequencies)

There is no way that a 5"dia. 12t loosely coupled winding over an iron based core and in parallel with 7.8nF (or greater) can freely oscillate even at 1MHz !
Cheers ............. Graham.

Self-resonance of coil was measured to be in AM band -- 500Khz or lower.
Yet, the magnet-bar-solenoid arrangement would oscillate much lower, such as 40Hz to 100Hz (no faster). A tuned circuit for power generation would want to be down at these lower mechnical frequencies for IDEAL power.
This would imply that all the inductors connected in series are adding up to a very LARGE inductance (or a trick is being done to have a large VIRTUAL inductance), such as complex mutual induction relationships (n-Body problem). The "tuned" circuit, would be down very low in frequency, so that the power is not attenuated.

There could be a trick being down with HARMONICS, however. I wouldn't rule that out. There could be multiple frequencies and a sort of transfer from higher frequencies to lower ones by this means. Radio would have you filter away all but one FREQUENCY. But a different device might encourage all harmonics to co-exist, and TAP the power from the lower frequency.

If you had a situation where various oscillating magnetic fields were created near stationary coils, perhaps they can be vectored towards each other and added. The math here is a bit tricky. Watch out for gimbal lock. Use quaternion math - like Maxwell.

It occurs to me that two PISTON-like cylinders with magnetic fields alternately going up and down, although very CAR-like, may not be the best physical shape. I would think Stan Deyo's talk might be of interest. He mentions that UFOs can fly in certain formations. Rotating magnetic TOPS arranged in a formation of 3 (for example), can keep each other spinning for very long. It is a damped oscillation, but a very LONG one.

[pjotterkjen]

Scale 1:1 drawing template for drilling 57 pegs

Earlier I posted a link where a scale 1:1 drawing is available, but it seems the link does not work well, so I'll upload the PDF. Credit to overunity.de.

[thx1138]

Armature material

After playing around with the hard disk magnets I already have it dawned on me that the magnet backing plates they came off of are proably what we need for the armature.

I found one site that said, "I would think the magnet holder is made of soft iron, which has a very high permeability so the magnetic field much prefers going through the holder than air."

That would be very important in a hard drive to keep the magnetic field away from the recording surface.

A little testing with the ones I have certainly shows that they are magnetic when the magnet is attached to the backing plate and the backing plate immediately loses its magnetism when the magent is removed.

I also noted that the magnetic field on the back of the holder (the opposite side of where the magentic is attached) is very weak magnetically compared to the magnet side.

Maybe we can use them as the armatures although I'm not sure how to connect them to be as long as we need. Thoughts anyone? Anyone familiar with the magnet holder material?

[GSM]

After tearing down 27 hard disks .....

..... I guess that would be OK if we knew what the sizes of the poles were and what magnet material was used but I haven't seen those items specified other than in general terms like "radar magnet". I think what would be important would be the magnetic field strength rather than the physical size. If that is true then by his notes that would change the size of the cap/coil if we use neodymium magnets that are stronger than what was available in the 1950's.
Does anybody have any idea how to engineer that relationship using neo's? Best guess?

Me know ? No.
My guess - all different types of magnet bodies would still have distinctly different dynamic induction/polarisation related characteristics, even if presenting equal static induction field strengths.

Another comment I should like to make here, and not directed at yourself thx1138.

There have been some suggestions relating to extremely high frequency related effects (GHz) within similar looking constructions, and these frequencies then related to Hendershot' generator.
However, it needs to be realised that his waveform phase changing capacitors have values circa 40uF, and the metal core coil overwinds are either three of 12 turns and one of 64 turns.
There is no way that a 5"dia. 12t loosely coupled winding over an iron based core and in parallel with 7.8nF (or greater) can freely oscillate even at 1MHz !

Cheers ............. Graham.

[GSM]

My own comments in Morpher's Hendershot thread have equal interest here.

http://www.energeticforum.com/renewa...tml#post248610

Cheers .............. Graham.