Hendershot Replications

[RCGUY]

morpher 44

What aboutactually following the video and just doing the way it describes only using the thicker guage wire for the first winding, ok giving that it could be a hoax but has anyone actually tried the schematic as per the video?

[RCGUY]

Ok

What about Non polarized electrolic caps?

[morpher44]

hand-made cap

Now in the video it does not include a 4th copper coil wrap around the L1 is that something new you guys discovered?

Are you asking about the hand-made capacitor wrapped around the cylinder that is placed IN the coil?

If yes, get your hands on those books I recommended. Search the web for them. I see them on scribd and some other sites.
This capacitor is very tricky. There is a aluminum former. There is craft paper put on that to isolate it. There is then another layer of aluminum plating... THICK ... more craft paper ... a longer 96 inch long by 3 inch (or so) foil, more craft paper, and then two shorter foils with a gap between them. These last two foils have TABS on them for connection purposes.
This is a hand-made capacitor. There are math formulates for plate
capacitors. The Hendershot books say this cap should be 7.8nanoFarads. There is speculation that this can be a value as large as 1.3milliFarads. It is certainly not much larger than this given the geometry.
I tried to make this using wax paper and not craft paper and got about
22nF. My attempt was very crude and lousy, using house-hold tin foil.
That foils is probably has too much resistance. Hendershot would
crack open one of his Pyramid capacitors and extract the foil, wipe off
the oil, cut it to the dimensions he wanted, and then wrap them around
his cylinder former. If he failed to get the right value, he we take
it apart and do it again. This is a KEY element of his device.

Here is a video of a guy making one...
Hendershot Generator Nachbau Teil2 - Öffentliches Projekt - YouTube

[morpher44]

hardly a pro

No i did not pay for it some one posted a link to
the video and i followed it.....ok clean slate i will forget the Video and the
specs, where should i a not so experienced electrical engineer of complete
useless devices begin.....you guys are the pro's.

RCGUY.
Geez ... don't follow what I do. I'm not an electrical engineer either. :-)

Everything I know is self taught and a hobby for me... not my career...
and remember, I have not built a full replication yet myself.
I've just made a few videos doing various experiments and learning as I go.
So I recommend you do the same ... and please share what you find out.
One advice I can give on coils. It is better to "over-wind" them number of
turns wise. You can always create a TAP by scraping a little of the insulation
and connecting to the TAP that way. If you've ever made crystal radio sets,
one way of tuning was to have a coil with a metal SCRAPER thing that you
could move back and forth over the coil winding, TAPPING at various places
on the coil.
{btw, part of the Hendershot story is that he sits there for "hours" with a wire,
probing around, here and there until it starts. That description, to me, sounds
like he was searching for these TAPS on the coil. Once found, he's hit the sweet spot
so to speak}.
This is a CRUDE variable inductor. The problem with variable
capacitors for radio are they are in the PicoFarad range and specifically
designed for radio. A variable capacitor in the nanoFarad range is not easily
purchased off-the-shelf. So Hendershot hand-made his capacitor and used
C-clamps to tighten or release pressure on it to create a CRUDE sort of
variable capacitor. You will never be able to get frequencies "tuned"
with out some sort of tuning capability such as variable capacitance
or variable inductance. Another way to get variable inductance is to
move ferromagnetic material IN and OUT of your coil structure.
So the cylinders, for example, if magnetic, could be moved UP and DOWN
within the coil to adjust the tuning.

But ... we don't know what we are tuning .. do we?
Is it frequencies in the AM radio band ... such as the most powerful
radio station near your house? OR ... is it just to create the phase
relationship for a proper heteordyne between the two tank circuits?
OR, is it resonance for the oscillating magnet-bar-solenoid thing?

You can't just WIND some number of turns and succeed. You need to
investigate this thing with a spirit of discovery and see what works.

[RCGUY]

thank you

i will, i thought someone has already done it......

[RCGUY]

Ok

well i do have a 2.4ghz remote that i can use, i dont have an ociliscope so i might be stuck there.....but i guess ill go back to youtube and start watching all of your videos and learn a little more first......

[Gazzasore]

Go Here there is lots of information
Lester J Hendershot - The Hendershot Motor/Fuelless Generator - Hyiq.org

Do lots of reading

As far as we know no one has got this device working yet
But and many other people around the world are trying

[RCGUY]

OK gotcha

No i did not pay for it some one posted a link to the video and i followed it.....ok clean slate i will forget the Video and the specs, where should i a not so experienced electrical engineer of complete useless devices begin.....you guys are the pro's.

[RCGUY]

Question????

Now in the video it does not include a 4th copper coil wrap around the L1 is that something new you guys discovered?

[Gazzasore]

The Device in the Video is a hoax if you paid for it ask for your money back

Just follow what Morpher Does

[RCGUY]

Thank You Morpher44

ok, so i guess i will try and build it like the one in the hendershot video, what do you think??????? keeping in mind and without listening to much to the specs provided???????how does the first 12 windings in 20awg sound to you, then the next 2--- 6 windings in 14awg.

[morpher44]

some Hendershot Motor thoughts....

While walking the dog yesterday I was thinking about the "first" Hendershot motor.

Let us suppose there is a certain high frequency that is being broadcast with lots of power "near" Hendershot's home.
In 1927, 10cm Radar was pretty new and the ARMY was training people to
use it on mobile trucks that drive all around the country side.
This early radar was BIG stuff with lots of power, etc.

We also have the Hydrogen Line, which is a very interesting frequency ..
20cm or so.

Suppose Hendershot managed to re-wire his Son's airplane motor in such a way that the coil on the stator was "tuned" to these Ghz frequencies.
A coil has a response curve that is linear "pretty much" from 0hz upwards to
Fr (self-resonance). The self-capacitance in the coil will make this
response curve start to bend down again after the peak of Fr.
So at Fr we have the largest amount of energy reception.

This is the place the coil will self oscillate. While it is self oscillating,
there is power there. Not a lot of power ... but enough possibly to
create a field on the solenoid.
If Hendershot's motor was an AC motor -- which is possible
because the story of the time discusses that his device could
power a "sewing machine" sized motor and those motors were
likely AC. You can do this with a DC motor too probably
but Hendershot would have needed semiconductor diodes
for a bridge rectifier ... and he doesn't seem to use diodes.

As the motor starts to spin up, the magnetic fields in the solenoids
will intensify and have LARGER spikes from the pole reversals,
providing that nice positive-feedback effect. Further there will
be EMF emissions that the solenoids will respond to better
and better as the frequencies go from these slow mechanical
frequencies upwards to 100hz ... or 300hz.
Remember that 1800RPM is only 30Hz. But basically as motor
goes faster, we are walking up the LINEAR part of the inductor,
getting more power as we approach Fr.

So here are some thoughts for an approach:

1. Coil should be "tuned" to the frequency of the motor, but perhaps
have a second "tuned" coil for the Ghz frequencies. Bifilar?
The Ghz coil gets it going, the 30Hz coil keeps it going...
2. Solenoids in the motor need to balance the magnetic fields of the
motor exactly with a given amount of current. If you want current
very very small, you will need lots and lots of turns OR a
better way to WIND the coil to give a larger magnetic field with less
wire.
3. By using a pre-magnetized core in the solenoid, the fields
you create with the coil are added one way-subtracted another way
as poles reverse. This possibly can be exploited so that less wire
is needed.
4. The "reception" of these Ghz frequencies requires full-wave, half-wave
or quarter-wave antenna. Approx 8inch, 4inch or 2inch. A dish would
be ideal but would be unidirectional. If Hydrogen Line, then aim
it to the sky and point at the area of the sky with most intensity.
5. While prototyping, have a nearby Ghz RF source that blasts
microwaves at your motor to get it going. This RF might be something
you can turn-off once the motor gets going.

Does this sound possible?

[morpher44]

Hendershot-like...

I want to thank you guys for all the helpfull information on Hendershots work, i am new here and am very interrested.... Im a bit confused i looked at this project and im about to begin but im confused as to how many rows of the 24 awg enamel wire are supposed to be used i read 12 but i see many more rows in Drak's coil and in yours as well Morpher44??????

now the video of the Hendershot Generator being built has 12 then 6 then 6 but the 12 seems alot thicker then 24awg has anybody seen this?

or can any of you tell me how i should begin?

Hi.
You are paying attention. :-)
In my case, I made a couple of Hendershot-like coils.
I was attempting to get the same inductances, but NOT with the same
dimensions that Hendershot used. I had found these nice little
4.25 inch diameter paint cans and constructed a Hendershot like coil
with a more narrow diameter. Plugging in that diameter to the
equations for inductors causes my coil to need more turns.

Messing around with this stuff is like cooking. You can change the recipe
a little .. and after having done so ... you might discover some things ...
like what works .. and what doesn't work.

My very first thinking that Hendershot might have been "tuning" for
a very specific Ghz frequency, with the standing-wave or half-wave
directly across the diameter of his cylinder -- Antenna Theory.
If that is the case, then Hendershot coil dimensions matter.
If on the other hand, if his device is mostly LOW-FREQUENCY AC or pulses,
then dimensions don't really matter and only inductances might matter.
Further, realizes that in the Barry Hilton book, there are several
alternate schematics and several generations of the so called
Hendershot fuelless generator.
What we are all doing here is attempting to "reverse engineer"
something w/o knowing all the principals involved.

I do know that in the case of the magnet-bar-clapper, we are dealing
with frequencies in the range of 40Hz upwards to 200Hz ...
Therefore, in terms of a "tuned circuit" for ideal power, you need
to figure out the capacitances and coils you need for that.
This makes sense in terms of the 40MFD and 80MFD caps Hendershot
used in his original circuit (ignore the recent video which uses
totally different capacitor values).

As for wire types... One thing of Hendershot's day that people were into while doing
the Radio hobby, was making all sorts of crazy coils and publishing all sorts of tables
listing how many turns you need on what sort of former to get a coil for a certain wave-length for radio reception.
You could actually buy Honey-comb coils in those days.
Hendershot was making his own, obviously, because he was
caring about "magnetism" in particular. Hence the equations for
solenoid and the magnetic field produce may be more important
here than the formulas for inductance.
Solenoid - Wikipedia, the free encyclopedia
I think the solenoids are probably needing to MATCH the field of whatever
magnet you pick. If your magnet is super strong, you are going to
need a pretty intense solenoid. If you magnet is more weak,
your solenoid can be more modest. Hence, the notion of scaling things
is ever present in this design ... and so the question would be ...
"Can you change the recipe?"

[RCGUY]

Hello Morpher44, Drak, Dave45 and Gazzasore

I want to thank you guys for all the helpfull information on Hendershots work, i am new here and am very interrested.... Im a bit confused i looked at this project and im about to begin but im confused as to how many rows of the 24 awg enamel wire are supposed to be used i read 12 but i see many more rows in Drak's coil and in yours as well Morpher44??????

now the video of the Hendershot Generator being built has 12 then 6 then 6 but the 12 seems alot thicker then 24awg has anybody seen this?

or can any of you tell me how i should begin?

[Gazzasore]

Morpher
I look forward to your Posts
They are very informative and Precise
Keep up the good work