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8X Overunity from Joule Thief – Proven Design

Last Updated on January 2, 2024 by Swagatam 57 Comments

In this post I have explained about a unique 8x overunity circuit quite resembling a joule thief design which was created by one of the noted researcher Professor Steven E. Jones while experimenting with a simple overunity concept.

Table of Contents
  • 8x more Output from a Simple Joule Thief Circuit
  •  Circuit Diagram
  • Making the Inductor Coil
  • Practical Test Results
  • Proof of 8X Overunity

8x more Output from a Simple Joule Thief Circuit

While developing this overunity circuit he was amazed to see an 8 fold or 8x improvement in the power output, which simply indicated an 8 times more output being produced by his circuit, compared to the input supply power.

DR 1

The results were distinctly evident on the oscilloscope screen which he used to verify the test results.

Mr. Steven E. Jones is an American physicist who particularly became popular for his intense research on muon-catalyzed fusion

While trying to develop a simple overunity theory he could discover this unique 8x overunity effect in his special joule thief circuit, using the advanced Tektronix oscilloscope, which made his finding look even more credible.

When asked from where the 8x free energy was coming from, professor said "I don't know where the energy is coming from, but it's coming from somewhere," and he himself seemed interested in solving it through other researchers.

During the course of the experiment, to be precisely sure about the working ability of the circuit, he kept it running overnight for 9 hours. In his prototype an LED was used as the load and a AAA cell, as the power supply.

The results were undoubtedly confirmed when he found that even after nine hours of continuous operation, the LED continued to remain illuminated brightly, yet the charge in the cell had hardly depleted. Without his circuit the cell would have easily gotten empty and the LED extinguished long before.

Although we are discussing just a fraction of milliwatts here, it's a good start and enough to prove the a substantial 8x overunity.

 Circuit Diagram

8X Overunity from Joule Thief

The circuit designed by Steve can be seen in the above figure, which is a modified variant of a joule thief circuit based on "blocking oscillator" principle.

In this mode, an LC network can be seen operating with the base of the BJT which you usually won't find in regular blocking oscillator designs. Professor Steven names this stage as the "boost resonator" since this stage resonates at a particular frequency and also becomes responsible for boosting the output and generating the overunity effect.

According to Mr. Steve, he could also develop a method of fine-tuning the efficiency of the circuit to a level where the input consumption virtually reaches to almost nothing.

He further revealed that the crucial element of the circuit was the inductor in the form of a torroid, specially devised by him. Although the construction of this torroidal inductor is easy, and could be hand wound, it lets you witness some amazing results.

In his design the following parts were used

Rb = 2k, 1/4 watt
Ro = 9.8k,
Rr = 3.1k,
T1 = MPS2222
Cb = 151pF,
D = LED red,
Power supply: 2V DC from a couple of rechargeable  AA cells.
Both CSR = 1 ohm 1/4 watt (current sensing resistors)

Making the Inductor Coil

8X Overunity from Joule Thief  Inductor Details

The inductor was constructed with the following details:

L-B, L-O = 9 turns using bifilar winding
Core = Torroid 1"OD, 1/2"ID, 7/16" tall
Inductance value: approximately 90uH each

Practical Test Results

Here's the original voice transcript of professor Steven, illustrating the test results on his state-of-the-art tektronix oscilloscope.

"Basically, the power is coming from two AA rechargeable cells and little 1 ohms resistors in series with the battery, so I measure the input voltage and the input current, the voltage drop across the 1 ohm resistor and that gives me the input power, multiplying the input voltage times the input current, I get the instantaneous power that’s actually the green trace here, the yellow trace being the input voltage, the blue is the current, and the green is the output. The frequency is around 2.8MHz......"

Proof of 8X Overunity

8x 1
frequency 1

The above outstanding research by Dr. Steven, finally proves that overunity is actually possible through some means even if it remains mysteriously untraceable.

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About Swagatam

I am an electronics engineer with over 15 years of hands-on experience. I am passionate about inventing, designing electronic circuits and PCBs, and helping hobbyists bring their projects to life. That is why I founded homemade-circuits.com, a website where I share innovative circuit ideas and tutorials. Have a circuit related question? Leave a comment.... I guarantee a reply!

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Reader Interactions

Comments

  1. Piet says

    February 2, 2025 at 3:25 pm

    This man should not call himself a professor if he does not know where the 8 x double “energy ” comes from, because it does not generate 8 X energy but an 8 x higher voltage with an 8 x lower current … and a slightly lower power if you put in it (he never heard of copper losses and efficiency.??)

    Reply
  2. Darlene says

    February 2, 2025 at 12:12 am

    Hi,
    I want your help to replicate the first circuit here:

    https://web.archive.org/web/20061110100538/http://www.overunity.com/index.php/topic,1310.0.html

    Please email me. I can pay for a video of the replication of the experience

    Reply
  3. Richard Gieser says

    December 12, 2023 at 11:25 am

    I’ve read all the comments here and NO ONE clearly stated that they actually built this circuit and ran it. Has anyone tried this circuit? Why dont you limit posts to directly relevant activity? Also I dont believe those posting with questions regarding violations of the laws of thermodynamics, etc., are appropriate here. I believe everyone working on these types of devices knows that this goes against mainstream science which has questionable motives. Censorship is alive and well these days.
    I have built and powered up this JT8, as I like to call it, and so far it isnt running properly. I am now switching component values between what is shown on the schematic and what is shown on the parts list.
    I see several discrepancies in the assembly and the testing as per the instructions attached but there isnt much value in discussing problems with anyone who hasnt built and tried it yet.

    Reply
    • Swagatam says

      December 12, 2023 at 12:04 pm

      As explained in the article, the concept has already been thoroughly tested by a renowned researcher. The oscilloscope results are also shown in the above article.
      So that somehow proves that the circuit is a tested design.

      Reply
    • Piet says

      February 2, 2025 at 3:46 pm

      I have built this concept several times, with the aim of getting a higher voltage,
      This works, and is called a “Youles thief ” .. the output voltage is higher, but the amperage lower.
      Subtract the copper losses here, and the output power is always a little bit lower.
      So … nothing free … even a small loss ..

      Reply
  4. Samantha says

    September 23, 2023 at 3:16 am

    Do you know where I can get a full set of blueprints for this? I have two children under 6 and I am a single mom that wants to be prepared for anything. Is this something that a “laywoman” could build? I have heard that it can be very simple but I would need a full tools & material list and a full set of instructions. I would be looking to power my house in the event of an EMP or other such attack. Thanks so much for your post.

    Reply
    • Swagatam says

      September 23, 2023 at 9:41 am

      Thank you for you interesting question. I don’t think the above circuit can be built and tested by a laywoman since it needs a great deal of expertise in the field of electronics.

      Reply
      • Samantha says

        September 26, 2023 at 4:31 am

        Any chance you know where one could purchase one?

        Reply
        • Swagatam says

          September 26, 2023 at 9:13 am

          Sorry, this circuit is not available ready made. Possibly, you can hire an online engineer to build one for you and then you can purchase it from him.

          Reply
    • Richard Gieser says

      December 12, 2023 at 11:47 am

      Samantha, many of us share your exact interest.
      But even if you had this exact device running successfully at home on your kitchen table it would still be a lot more work and expense to scale it up to run your house for lighting, heating, air conditioning, etc. and your car. Some people would also like to sell electricity back to the electric company with a grid tie like my son does with his Tesla installed solar power system.
      At one of John Bedini’s annual conferences in 2014 I asked one of his people what I need to do to run my house or car and he said “just get a bunch of solar panels”. So, while several of these “free energy” devices may work overunity they still cost money to implement AFTER you figure out which ones work and which ones dont. My search started around 1985.
      Also, you would need to shield this device from an EMP strike because without shielding it will be damaged. And many of the electrical devices in your house would be damaged by an EMP so you wouldnt need electricity to run them anymore if they arent protected. Shielding everything in your house would not be easy to do.
      Please keep up your search.

      Reply
  5. RICHARD S GIESER says

    May 20, 2023 at 10:30 am

    The parts shown on the schematic do not match the parts list. Please clarify, Swagatam, and thank you for your work.
    resistors on schematic; 0.01 ohm, 1 ohm, 3.1k, 9.8k and 51k, caps; 20pf and 151pf. I believe, from reading the text, that the 0.01 ohm should be 1 ohm.
    resistors on parts list; 2k, 9.8k, 3.1k, caps; 151pf.

    Reply
    • Swagatam says

      May 20, 2023 at 12:10 pm

      Thank you Richard,
      Actually the above article was acquired from an external source a long time ago, so I do not remember why there’s a difference between the parts list and the diagram. I would suggest you first try the parts which is shown in the diagram, and keep experimenting until the most efficient outcome is achieved.

      Reply
  6. Dieter says

    December 11, 2022 at 4:52 pm

    Here’s just a further thought about joule thieves, in relation to Tesla’s patent on the bifilar coil, aka pancake:

    Running a bifilar in parallel has no special effect on the capacitance. But in series it has a high capacitance: half of the entire voltage drop is capacitive charge separation. Now if you pulse it parallel and then let it collapse serially, there is suddenly a capacitive charge present that cannot origin from the pulse. This makes the bifilar coil a variable capacitor, no moving parts and controlled electronically.

    Furthermore, if the pulse is anti-parallel, then there is no impedance, so the coils are loaded almost immediately. (An additional monofilar coil before ground can further throw energy back into the circuit, rather than to just dump it to ground).

    So the pulse (maybe 1% duty cycle square wave) would go in anti-parallel, but a (real) capacitor at the end of one winding allows for the bifilar coil to switch to serial ringing, as soon as the pulse stops.The same may be true for asymmetric bifilar coils like the one in the joule thief.

    That being said, this isn’t exactly verified science. However, there is something about capacitors that’s really mind boggling: alter the capacitance of an uncharged 2-plate capacitor: increase the distance, it gets charged! But as it’s charged, plates attract each-other physically, hence you need energy to separate them – law of energy conservation saved – for now. Now discharge it and move plates closer, it gets charged again, but this time the attraction will help your physical motion, which violates the said law from my point of view, and could explain several phenomena. Everybody with two pieces of aluminum foil and a volt meter can do this experiment. Try: Book – aluminum – kitchen wrap – aluminum – book sandwich, then squeeze it and watch the voltage.

    Reply
  7. Dieter says

    December 11, 2022 at 6:19 am

    Hi Swagatam,
    I just found this page and I’m really impressed. I did some research in similar fields too, but struggled in finding people capable of comprehending and/or paying attention.

    I stumbled upon an apparent loophole in the Lenz law, that’s logical, yet violates thermodynamics. Now I’m searching for an open-minded, technically competent person who’s willing to take a look at it, and whether he sees a flaw. I condensed the theory to two 2 minutes long videos you can find on my profile on twitter:
    https://twitter.com/DieterMarfurt/status/1600999478928232448
    Thank you very much.

    Reply
    • Swagatam says

      December 11, 2022 at 10:36 am

      Thank You Dieter,
      I appreciate your question.
      However, I don’t think I have sufficient knowledge in the field of thermodynamics or to analyze Lenz’s law, so I may not be competent enough to answer your questions.
      If possible, in my free time I will try to investigate the issue and let you know.

      Reply
      • Dieter says

        December 11, 2022 at 4:12 pm

        Thank you very much, that would be great!

        To all:
        It isn’t that hard to understand, actually. Once you realize that the essence of the Lenz law is: a coil repels an increasing magnetic field-strength and attracts a decreasing field-strength (but only if we let the current flow) and therefor becomes a brake to the rotor, which accounts for the losses that keep conventional generators below 100% , then it’s just one further thought to imagine a magnet that’s strong at a distance and weak when close by (to the coil) – this reversal of magnetic behavior also reverses the brake effect into an acceleration effect. The video shows an implementation approach of such a special magnet.

        Reply
  8. David Cannon says

    December 1, 2022 at 8:29 pm

    what is the practical use of this circuit and what happens if you raise the 2.8 MHz to 5 GHz does it increase the voltage out

    Reply
  9. Magdalen Vossen says

    November 30, 2022 at 2:29 pm

    Everything is very open with a precise description of the challenges. It was truly informative. Your website is useful. Thank you for sharing!

    Reply
  10. Herbert Dorsey says

    August 2, 2022 at 11:45 am

    I have found another way of creating over unity with resonant circuits. In a series resonant circuit the input current flows equally through Land C. But , at resonance the voltage across L and C are about equal and opposite and much higher than the input signal voltage. Some researchers claim that this voltage is Q times higher where Q is the quality factor of the tuned circuit at the resonant frequency. Since power is current times voltage the power in either L or C will be higher. If L is bifiler power can be easily tapped from L.. Alternatively in a parallel tuned circuit, the signal voltage is the same in L and C but the currents will be opposite and equal and much higher than the signal current.

    Reply
    • Swagatam says

      August 2, 2022 at 12:54 pm

      Sounds great! Thanks a lot for this valuable information.

      Reply
    • David Cannon says

      December 1, 2022 at 8:33 pm

      Tesla also said the same thing in free Electric power so does this mean that were are re discovering Tesla’s theory on resonant frequency and what happens if you raise the frequency to 5 GHz ?

      Reply
  11. kiev kenny says

    April 19, 2022 at 8:27 pm

    Looking at the pictures, i couldn’t identify which model of Tektronix scope was being used–was it another vendor instead?

    Reply
  12. Steve says

    March 22, 2022 at 11:22 am

    Anyone heard of the conservation of energy or thermodynamics. You cannot create more energy that is actually usuable than you put in. Whatever is happening in these circuits is either piking up eletromagnetic energy from ambient signals of which we are surrounded, bluetooth, wifi, DAB, TV etc.

    Or its wishful thinking or bad understanding of electronic principles and calculations.

    Reply
    • Marius Bogdan says

      October 27, 2022 at 12:28 am

      Yes, that’s what I will explained at technical school and university. But let’s remember Nikola Tesla and the other “dissidents”! I have also experienced inexplicable phenomena. I worked for years in research laboratories, quantum physics is different in many areas!

      Reply
      • Swagatam says

        October 27, 2022 at 10:53 am

        Thank you for your useful feedback, appreciate it very much!

        Reply
    • Dieter says

      December 11, 2022 at 5:58 am

      While he said the AAA cell get depleted much slower – it still gets depleted and hence is below 100% efficiency. However there are several loopholes in those laws, they are not absolute. Like:
      cavity implosion in ultrasound
      disassociation of diatomics on catalytic surfaces
      PN junction electron flow
      low energy nuclear reaction lenr
      static charge theft by variable capacitors (joule thieves do that too)
      anti lenz field postulate

      IDK how much you know about electro-magnetics, but here’s some food for thought:
      https://twitter.com/DieterMarfurt/status/1600999478928232448

      Reply
      • RICHARD S GIESER says

        November 17, 2023 at 8:55 am

        The supply batteries running down is not an indication of less than 100% efficiency.
        If the output power to the LED was rather fed back, in a proper manner, to recharge the supply batteries, then we may suspect less than 100% efficiency if the batteries eventually ran down. I would suggest using mechanical latching relays to periodically switch the supply with the load batteries (replacing the LED) or capacitors instead because of their low contact resistance and as latching relays they draw no power except when switching.
        This would preclude the need for the oscilloscope and would be more of a “proof is in the pudding” approach.
        Do the batteries continue to increase in charge or do they decrease ?

        Reply
  13. Donald Livesay says

    February 7, 2022 at 5:23 am

    Hello Swagatam,
    It seems that wrapping the wire on a toroid causes the magnetic and electric fields to rotate around the toroid causing a vortex, obviously pulling in extra energies. this is similar to Tesla’s Toroid for distribution of energy US patent US381970A. people do not know he got one over on the patent office. also Iron and other materials amplify current referring to electrical storms that cause transformers output to shoot through the roof and blow up. Rotating vortex does pull in extra energy, the larger the vortex the more energy pulled in.
    also a reference; why does it take 300 watts to start a motor, run for a few minutes then shut off. it started within 30 seconds to a minute the motor will draw only 100 to 150 wats of power to start. WHY ? Vortex was created and does not immediately dissipate. all these are facts.
    PS. love your web site and your mission.

    Reply
    • Swagatam says

      February 7, 2022 at 10:15 am

      Thank you Donald, you may be correct. I appreciate the valuable information that you have shared with all of us here.

      Reply
  14. Suat Kaleli says

    January 7, 2022 at 7:55 am

    Hi Swagatam;
    My aim is to make mini heater input is 3 or 5 V reduced from 9 V and I need the current as low as possible. I have the chrome resistant wire of diameters 0.20 and 0.4 mm. Heat will be about under 30 degree C. Is it possible to use this joule thief circuit. Thanks

    Reply
    • Swagatam says

      January 7, 2022 at 9:01 am

      Hi Suat, yes you can try the joule thief concept for your application. More info can be found in the following post:

      3 Best Joule Thief Circuits

      Reply
      • Suat Kaleli says

        January 7, 2022 at 2:53 pm

        which part (I think transistor would be) may be exposed to overheating. What about the idea to include 555 timer circuit to run the circuit by pausing in short periods to eliminate the overheating. Or should be enough to use proper resistant. Many thanks again.P.S.: Meanwhile I preferred the circuit which run the 12 V small DC motor with the diode rectifier

        Reply
        • Swagatam says

          January 8, 2022 at 7:44 am

          I think 30 degrees Celsius is very less heat, and this will not cause any heating on the transistors. I guess even nichrome wire is not needed for so little heat, you can simply use any wire-would resistor for this.

          Reply
    • an Igor from rustsia state says

      May 15, 2022 at 3:03 am

      Hello Suat. It depends on the fluid for heating – a gas or a liquid or a powder or a pulpa\emulsia or else. If were you gave necessary or desired total power of your heater in whatts=joul per second – it would be grate. just there are a Law of Nature – if the dissipated from “crome resiatant” power more than given from the power source – the heat will be wery less than 30 Celsius degree despite a largest possible to the 9V supply’s current it is ONLY YOUR TROUBLE!!!!!!! you must know the rate – how many thermal energy is necessary to the with the heater process – to – how many energy can give the power supply. Without these data nobody can help you distantly.
      Or to made a few tests – as you understand – with use of a clip to connect your crome resistant wire without cut off it – until you find out desired results.

      Reply
      • Suat Kaleli says

        May 16, 2022 at 12:06 pm

        Thanks an Igor I need to try your advises and to understand details.

        Reply
      • Marius Bogdan says

        October 27, 2022 at 12:33 am

        I agree ! There is no more correct method for measuring thermal energy!

        Reply
  15. justice Festus says

    November 11, 2021 at 4:25 am

    I have been trying different joule thief circuit and getting a good result and I strongly believe that there is an overunity in it , but please can this device be modified with much larger transistor and inductor for it to generate like (10w-80w). (1kw to 8kw), is it possible

    Reply
    • Swagatam says

      November 11, 2021 at 10:12 am

      Thank you for your interesting feedback, yes, according to me the circuit can be upgraded by replacing the transistor with a high power transistor and by using thick wires for the inductor.

      Reply
  16. Adrian says

    June 16, 2021 at 10:31 pm

    Good Day Sir. May i ask you something if you please?

    Reply
  17. Tim says

    January 22, 2021 at 2:05 am

    I am very new to electronics and trying to learn. I am in the process of building a “Bedini wheel”. I am wondering if it would be possible to ad a “Joule Thief” into the circuitry to improve or amplify the “Overunity” to increase output.

    Reply
    • Swagatam says

      January 22, 2021 at 9:58 am

      I don’t think it’d a good idea to join the two concepts together, which could probably reduce the efficiency rate.
      Bedini wheel has its own efficient principle of generating the overunity and may not work well with external modifications.

      https://www.homemade-circuits.com/how-to-recharge-discarded-lead-acid/

      Reply
      • Tim says

        January 22, 2021 at 8:59 pm

        Thank you for the quick responce!

        Reply
  18. Msha says

    December 31, 2020 at 5:27 pm

    That looks like measurement problem.
    I think he did input power measurement incorrectly – by putting ground leads to negative terminal of the battery and resistor ground wires effectively shunt it, turning oscilloccope ground wires into current sensing resistor in parallel with one-ohm one, so input current is measured wrong (way less than real current).

    Reply
  19. Thomas wlazlak says

    December 30, 2020 at 10:30 am

    So a fraction of a milliwatt over 9 hrs. is not much in the line of power how close to some radio tower to get a milliwatt blead in charge do we need to be. not to get off subject what if there were a real big output device that could generate power 24/7 365 at lets say 25,000 watts or how about megawatt. Corinne Technical Design — EttCM Energy Technology. Washington State USA. let me show you how it done. Thanks.

    Reply
  20. JoeyP says

    May 30, 2020 at 1:04 am

    This extra energy is coming from the ZPE energy field. It happens anyway, although unless you have resonance, it usually requires more energy being put in than what is coming out. John Bedini, Eric Dollard and OTHERS (Patrick Kelly, etc.) on the internet can give you more info.

    Reply
  21. kingpost says

    December 23, 2019 at 6:35 pm

    Hi dear Swagatham, is it possible for someone build x8. Where input is 12v or more and output of 100w to 1kw, thanks.

    Reply
    • Swagatam says

      December 24, 2019 at 10:33 am

      Hi Kingpost, it may not be possible using the above explained overunity concept

      Reply
  22. Glarus says

    December 8, 2019 at 10:33 pm

    Dear Swagatam,

    The said circuit, if analysed may be works on the principle of parametric resonance. This type of energy production was studied by Russian academics Mandelstam and Papalexi “On the Parametric Excitation of Electric Oscillations – 1934 – NASA 1968.pdf ” among others in the early 30-es. In USA Wanlass put in production in the 60’s the Paraformer “US3403323_Electrical energy translating devices and regulators using the same”.
    In the yearly 2000-s a Russian engineer developed the parametric machine of Mandelstam and Papalexi on solid state devices – transistors, transformers, SCR-s and for switching regulator used a blocking oscillator circuit. His patent has expired in 2012, but the whole machine fundamentals are described in details in his patent together with the math of operation. This patent was granted even though it was explored by the Committee for Pseudo Science at the Russian Academy of Science. The circuit is powered from its own output, and only for the start it uses a battery for less than a minute.
    In case of interest I may prepare exact translation from Russian, not the one from Google AI.
    I am not an electronic engineer, that is why would be glad to have some professional help to calculate the necessary components, based on the operation maths of the device provided in the patent documentation.
    Waiting for comments and interest to make this technology open sourced.
    Best regards
    Glarus
    [email protected]
    p.s.: meanwhile I study at great speed and your page is one of the best ever I have found on the internet community. Thank you for this.

    Reply
    • Swagatam says

      December 9, 2019 at 10:50 am

      Thank you very much Dear Glarus, for your valuable inputs.
      No problem, you can definitely share your translated document with me so that I can publish the same in this blog.
      I am glad you are liking my posts, please keep up the good work!

      Reply
  23. Matthew says

    March 21, 2019 at 8:58 am

    If 8X more output was really being produced than the input, you could just connect the output to the input and use 1/8th of the output to power itself and the remaining 7/8ths to run the LED

    Remove the battery, and the LED would run infinitely long. Obviously this wouldn’t happen so you’re just measuring incorrectly.

    Reply
    • Richard Gieser says

      December 12, 2023 at 11:02 am

      Have you made this circuit and tried out your idea, Matthew ?

      Reply
  24. Andras Csiki says

    January 14, 2018 at 8:10 pm

    Hello Mr. Swagatam . The 8x Overunity Circuit can be used for AC current application. Thank you.

    Reply
    • Swagatam says

      January 14, 2018 at 9:09 pm

      Hi Andras, I am sorry no, it is applicable only with DC inputs

      Reply
  25. Norman says

    October 23, 2017 at 3:51 am

    I am building a circuit that uses a HC-SR501 PIR. The PIR requires a minimum of 4.5V. The rest of my circuit requires 3v-5v. The problem arises when the batteries get lower than 4.5V, then the PIR begins to not function properly. I could use a 6V battery pack and voltage regulator to protect my other components, but that takes up space. I was wondering if there is a way of boosting the battery power to the PIR so when my batteries get lower than 4.5 volts the PIR still sees more than 4.5V. This would make my batteries last longer before replacement.

    Reply
    • Swagatam says

      October 23, 2017 at 8:58 am

      you can try the following concept

      https://www.homemade-circuits.com/1-watt-led-driver-using-joule-thief/

      you can modify the collector side winding to adjust the output voltage for the circuit as required.

      Reply
  26. Anil Kumar. K says

    June 25, 2017 at 12:33 pm

    Hi dear Swagatham, I did not fully get the point….8x free energy….!!!!
    Is this means, power source, say a AA dry cell will last 8 times than a normal Joule thief circuit.
    I have already assembled many Joule thief circuits, that only consumes 12mA to 18mA from a single AA cell.
    A blue LED continuously run 28days on a fresh AA cell.
    If I modify my circuit like the above circuit, will my battery last eg.28days x 8=224days….?

    Regards

    Reply
    • Swagatam says

      June 25, 2017 at 12:56 pm

      Dear Anil, 8X refers to 8 times more than what you would get if you connected the LED directly with the battery…. not through a joule thief circuit.

      you are already getting very high efficiency using a joule thief circuit, modifying it in the above manner could sightly improve the situation and keep the LED illuminated for some days more…

      Reply

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