Directory:Stefan Hartmann Circuit

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Page was originally created in response to Directory:Bedini SG

Bedini does not wish for it to encumber the Bedini SG project page. He is in disagreement with its proposals as they pertain to the Bedini SG. It is posted here for those who may wish to pursue it.

Maybe you should try a faster diode

Stefen's Recommendation

Oct. 11, 2004

Hi Sterling,

try to change the Diode 1N4007 to a better and faster one.

You are loosing output power, cause the 1N4007 is pretty slow in switching.

As it depends on the spikes and fast transfer of this energy pulse

a better and fast diode will bring much faster recharge of the second battery.

One other question:

Does the neon bulb blink ?

If yes, than too much energy could be wasted this way.

As it seems gas discharge is very important for the functioning

of this circuit (seems to simulate the spark in mechanical switching and thus the negative current spikes

like in Newman motors)

it could not be substituted with something else.

But if the neon bulb just only protects the transistor by discharging to high voltages to ground, then this energy

is wasted.

Regards, Stefan Hartmann.


Sterling's Reply

Hi Stefen,

What spec diode would you recommend? I'm not conversent in these kinds of things.

The purpose of the neon bulb is to provide somewhere for the energy to go if the receiving battery is disconnected from the circuit. It does not light unless the receiving battery is disconnected and hence does not effect the efficiency of the circuit under normal circumstances.


Try BY228 and add another Neon bulb

Quoting from


Hi Sterling,

Try a BY228 as in [

energy/files/electronpumping_fl_tube.gif this circuit]


I did compare this circuit with a 1N4007 and the BY228.

With the BY228 the tube was shining much more brightly,

cause the BY228 is much faster in switching which gives

more light in this circuit !

Also I made the experience, that these small neon tubes

which you use to protect the 2N3055 transistor are very good,

when one uses them in some pulses power systems.

As these also have this glow discharge region in their diagramm, they

can act as a spark gap.

So try to put one additionally in series with the BY228 directly

before the second battery. That could enhance the charging of this

battery. Could be, that then the 1st neon bulb at the transistor is

also blinking ( firing), but then just use there a second neonbulb in

series there, so you have 2 in series there and the voltage is then

about 160 Volts when these 2 in series will fire.

So normally only the one at the second battery will fire and recharge

this battery as this already fires at about 80 volts.

I hope the 2N3055 can stand these high voltages, I have to look it up

again. Otherwise you can use also 2 or 3 White LEDs in series at the

transistor in series with the neon bulb. This will raise the fire

voltage of this neon bulb about 10 Volts higher than the neon bulb at

the second battery and thus only the neon bulb at the second battery

will fire in normal operation.

Hope this helps.

I refer to the Directory:Bedini SG:Schematic page:

Regards, Stefan.

- - - -

Sterling, you can use

this circuit also on your page, if you want:

(need to uplaod this for people who don't have access to free-energy group)


Regards, Stefan

Neon Bulb Possibilities

If you take a bigger neon bulb and

wind a coil around it and use one of the coil ends as

an antenna and the other end grounded, then you can

suck in additional power from the free electrons from the

environment. You have to try, how the coil is positioned

over the bulb. Could be, that you have to turn the coil

by 90 degrees.

P.S: The coil makes no contact with the circuit and just works

as some kind of electromagnetic valve for the neon gas


I learned this, when I experimented with the Xenon tubes

and neon tubes a few years back.

Regards, Stefan

P.S: or the ground site of this extra coil can be connected to the

ground of the drive or charge battery !

- - - -

Dipl. Ing. Stefan Hartmann

Hartmann Multimedia Service

Keplerstr. 11 B, 10589 Berlin, Germany

email: []

Bedini Responds

Oct. 12, 2004 [please excluse lack of diplomacy]


[...] The fact is, the circuit components chosen were given to Sterling because we know this specific set of components WORKS on this "flea power" machine!

If you knew what the circuit was doing, you would know that the neon bulb is there simply to protect the transistor from second emitter breakdown in the event that the secondary battery connection is broken. High frequency diodes don't work here. We know, we actually TRIED them, many times. They never worked.

All of your recommendations are WRONG. [...]

John Bedini

More Dialogue about Circuit

Stefen replies

Quoting from

Oct. 12, 2004

Hi John and Sterling,

If your original circuit would work, you would

already see an increase of both battery voltages,

but after your runs you now see a decrease !

This is because you are using just an electronic transistor

switch with no glow discharge mechanical switch and

the neon bulb in your circuit is really only there to protect the

transistor in case the charge battery gets loose.

The neon bulb in your circuit is normally not firing, so you

don´t see its positive effects.

ALso it is much better to drop the transistor all in all

and substitute it via 4 reed relay switches in series.

Then you also don´t need the 2nd coil( sense coil) anymore !

I have had many years in practical experiences with the Newman

motors and other pulse circuits.


The problem I have since a few years, that I don´t have much time

and space to build myself in this moment and I don´t have a lab, but

I hope this will change in 2005 again.

I will post later this evening a better circuit diagram with the

reed relays.

Regards, Stefan.

Proposed circuit from Stefan

Oct. 12, 2004

Here is the proposed 2nd circuit.


It relies on mechanical switching !

If you put 4 reed relay switches in series

in close proximity

and let them switch on and off via the approaching magnet,

you will get a much better dI/dt current change.

Also you need one coil only !

You can also make this coil bigger than with bigger

wire size diameter and more turns, so you have more copper

wire al in all, while keeping the ohmic resistance

the same and have more stored magnetic energy,

which is then converted into RF energy at the spikes

(RF bursts) and recharges BOTH batteries.

These are the Newman principles.

With 2 switches in series I got once already a total negative

input current into my Newman coil and more switches in series enhance

this effect.

You have to place the reed relay switches in the right position, so

they switch the coil on and off at the right moment, so the magnet

gets the right attraction or repelling. You have to experiment, which

is better, attraction or repelling, see what will give the best back

current pulse on a scope.

It could be, that you have to replace the contact points of the

reed relay switches with graphite and copper contact points, so

the real spark gap glow discharge effect will occur and maximize this

way the negative back current spikes for optimum recharge of both

batteries. ( You can also build your own reed relay switches with

small magnets glued to a graphite-copper switch !)

You can also experiment to change the diode or leave it totally out,

but then put 2 or 3 neon bulbs in series to have a higher current

shutdown-voltage ( higher than both batteries in series).

Hope this helps.

Sterling, with this circuit you should definately see the batteries

get more charge than with the transistor circuits !

Regards, Stefan. - ??? mew ???


Stefan Hartmann ( adds:

Sterling, did you try any of Directory:Stefan Hartmann Circuit yet with your wheel ?

You must have a glow discharge in some way to get

"radiant energy" ( RF bursts and back current pulses)

recharging the batteries much faster.

In the circuit you are using, you just shuffle the energy

back and forth in the 2 batteries and with the wheel losses

you will loose energy all in all and the batteries finally discharge.

Bedini´s and Lindeman´s claim, that it needs several

charge/discharge cycles for any OU to show in the batteries

is not logical !

If the circuit is not able to charge BOTH batteries after a few cycles

of exchanging the batteries, then you just have a wrong circuit !

All Newman circuits that just used transistor switches for the commutator failed to

recharge his batteries ! You must use glow discharges to get the these RF bursts to work for

the batteries !

Regards, Stefan.

Sterling's Reply

Oct. 14, 2004

I do plan on trying one of your circuits. Should be quite easy to do.

Have you built a successful demonstration of your circuit? Have you

published your data? Where can I see it?

Say what you want about Directory:Bedini SG. I've seen his stuff work. I've seen his


You don't have to have a spark discharge. That is the beauty of what

they have discovered. They accomplish in a high rise time what the spark

discharge accomplishes. Don't even need a rotor. They have solid state

iterations. Saw them.


John Bedini Tests Hartmann's Circuit

Oct. 15, 2004


Today Peter and I built your circuit using one of the motors that we know works as hooked up the way we instructed Sterling.

'Here are the results of the test.'

We hooked up the circuit as you posted to Sterling, we connected the Neon bulb between the output diode and the positive pole on the out put battery, leaving the rest of the circuit the same, we left the neon on the collector emitter junction so the device could go up to 90 volts and beyond, the neon's were bright reddish blue most of the time. What we did not see after 20 minutes of playing with this was, the primary battery continued to fall in voltage all the way down to about 10.50 volts. The secondary battery stayed at the voltage of the battery at standing, around 12.78 volts. Then we put back the circuit to the way we instructed Sterling to do it, with a dead primary battery at now at 11volts, because the semiconductor was not in cross-conduction any longer due to the voltage and frequency, the back battery immediately shot up to 13.06 volts and continued to charge.

This is what we have seen with this circuit that you have posted, have you ever tested it yourself?

John Bedini

Harmann Refers to Newman Data

Oct. 14, 2004

Hi Sterling,

I had a lot of my Newman work online until

about 3 years ago, when the server crashed, where

it was hosted.

I still have to see, where I have stored it away

in my files and CDs.

I already uploaded a few pieces( the most important ones)

There you can also see the spikes and RF bursts, that are

important for the battery recharges...

If Bedini and Lindemann really have working

solidstate devices, why don´t they show them ?

What are they doing with them and what is the output power

level ?

Now almost all is back online at:

( full HTML page overview, easy to browse !)

and a few more things at:

Regards, Stefan

John Bedin's answer to this

Oct. 14, 2004


Let's be very clear on this subject, I have nothing to do with Newman, so let's not associate Newman with me. I don't mind answering your questions about why I have only put out data on the school girl motor. This technology was developed by me under funding and I would not think that my investors would take kindly to that. Yes we have developed bigger and much better systems, which I file patents on.

Everything I do is for the betterment of mankind, but you must understand the basic system first. I will make the details known in time to everybody, when all the interference goes away, like Bap for one, who you seem to condone as an expert who you just let slander me day after day. When I offered my machine, you did not even pay attention to anything I said, so why should I release anything to your group, or any other groups.

John Bedini

9V Battery Test

October 28, 2004

Try this test:

Use 2 equal 9 Volt batteries from the same manufacturer batch run

production and run one on the motor with transistor setup as posted

in the [Bedini] There was an error working with the wiki: Code[1] and one with mechanical commutator ( switches).

The one with mechanical switching will at least run twice as long.

(If you have small sparks at the switch and don´t suppress them by

grounding the unit).

I have already done these tests

a few years ago all along with my Newman coils !

Look at this smaller left coil:

This coil with a powerfull permanent magnet inside

(glued a rod to the Samarium perm. magnet)

It is the same principle there as with your Solid state Bedini Motor !

With transistor switching no back current pulse,

with mechanical switching this:

You get these negative current spikes only,

if you use mechanical switching with the right electrodes !

I would not give these advices,

if I had not done all these tests during this time

and also JL Naudin has had the same results, as we have pointed already out !

The problem was. at this time, that I wanted to maximize the

mechanical motor output and always killed the spark RF burst energy pulse

output via my Fluorescent tubes and did not use it to charge back the batteries !

I also wanted to prevent the commutator from burning up and the batteries for overcharging...

Now as I have more insight after all these years and newer experiments with electrodes

I am just trying to give advices to people, who are knew to coil switching devices.

Unfortunately I have currently some

other work to do, so I don´t have much time to build but will try again to work

on this in 2005 .


is the same basic circuit as a Bedini-circuit

and your solid state Bedini circuit !

The only difference is:

I replaced the transistor switch a a mechanical switch and

thus I also need no control coil !

I used a mechanical relay switch and when the samarium magnet was falling

back into the coil due to gravity, after the current was cut from the coil,

the relay was again triggered by my function generator running at only a few Hz.

So the magnet went up and down inside the coil.

Do you see it now ?

Also my magnet was not ontop the coil as in your

Solid State Bedini motor, but mostly inside the coil.

But I also pulled it out once and put it ontop the coil

and the basic effects did not change much, only the amplitude

of the back current pulses, when I remember correctly.

I also tried this same circuit with transistor switching,

but there you only see the waveforms you also have´at your coil, just these single voltage spikes, but no back current pulses !

The curious thing is:

Normally the current pulse must flow in the positive direction from the battery

to the coil , due to the classical coil theory,

but it DOES NOT ! It flows into the negative direction, that means it charges UP

the battery. But you will only get these negative current pulses, if you use

a mechanical switch.

Please study this again:

Here you can see again,

that when the negative current spike appears,

the battery voltage will rise !

First trace is the battery voltage (Power supply in my case),

second trace is the input current into the coil.

Regards, Stefan.