Amplifying ELF

Discussion in 'The Projects Forum' started by johnsy, Jul 19, 2014.

  1. johnsy

    Thread Starter New Member

    Jul 3, 2014
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    Hi,


    while researching the subject of tubes amps, i met someone who is an avid collector of vacuum tubes amps.

    As i was looking at all the amps he said that the most important "device" in his room was a little grey box on top of a small bookcase, called "the revive".

    [​IMG]


    So basically it's an ELF pulse generator set at 7.83hz (see inside)

    Which is supposed to do is modifying the soundspace for more musicality and to amplify the listener experience, etc... (this is what i grasped off all the things he said concerning this device)

    The thing is that the little box is quite expensive (more than 500$)

    I found pictures and a few schematics (like this one) but any input would be appreciated as i would like to amplify the signal

    A guy made is own homemade box, but without a pcb coil:


    [​IMG]

    Inside


    From what i've read this concern square waves (but research also indicate sine waves)

    I have also few function generators who could also generate the frequency but i have no idea about the amplifiers for such low frequencies.

    Thanks in advance!
     
  2. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
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    Thanks, I needed a good laugh. :D

    Tube amps since the sixties often had a "tremelo" oscillator, as a crude sound effect. That subtly varied the volume of the sound by a low frequency.

    Your schematic for the device here;

    [​IMG]

    Looks like complete nonsense. All it does is apply a very low current to the coil at the desired frequency, which will make an incredibly tiny magnetic field very close to the coil.

    Sorry but that won't have any effect on the sound at all, that a sane person can hear.

    And as for the insane people? Well they might just pay $500 for it. ;)
     
  3. johnsy

    Thread Starter New Member

    Jul 3, 2014
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    That's good for you, i guess.

    Not mine, i just looked here when searching for informations on the revive.

    a few links:

    http://www.acoustic-revive.com/english/rr77/rr77_01.html

    http://www.diy-audio-guide.com/schumann-resonator.html

    http://christopherbradshaw.net/The_Project_Bin/Schumann Frequency Oscillator with Scalar Coil.html

    http://jeffsplace.me/wordpress/?p=3178

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2656447/


    People are not supposed to "hear" it, i'll soon meet him again and two of his friends who are sound operators/engineers who were highly skepticals at first on this subject.

    Today an austrian friend told me he was not surprised at all, having worked at an hospital he told me that the same type of generators have been in use in maternity ward in Japan (apparently), as well as tested in the US, Germany, France on stress and ptsd (mainly).

    Musical research seems more recent it seems (from what i've found)

    While i've not experienced this device myself i'm open minded enough to research the subject, so i can make my own opinion after building one.

    i remember two modules that might be of interest:

    [​IMG][​IMG][​IMG]

    Now i would like to amplify the output to the pcb or coil, so if anyone has an idea i'll really appreciate any informations.


    Thanks.
     
  4. KabulDubai

    New Member

    Jul 19, 2014
    12
    3
    Je pensons que si,nous toucher le ELF lors il sera augment le voix autours vous et tous le monde et cette pourquoi je peux suggest que je sera ne jamais faveur a utiliser francais amplifier ARSA voix boosters juste pour le fame du francois langue mais en terms du electroniques quand nous utilser une stereo et le sounds sont augmente lors quand il toucher le FRENCH ARSA dehors votre maison lors il rebouncer et cree problemes.
    Merci.
     
  5. wmodavis

    Well-Known Member

    Oct 23, 2010
    737
    150
    "modifying the soundspace for more musicality and to amplify the listener experience", "People are not supposed to "hear" it", "most important "device" ... little grey box .... called "the revive".

    Gee I'd pay $500 for all that alone besides having a neat little grey box with electronics inside on top of my bookcase (was there any information on what type of bookcase works best with this DOOHICKEY?). It looks like just what I've been looking for to revive me.
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello

    @KabulDubai,
    This is an english only forum.
    If you want to respond to the forum use the english language.

    Bertus
     
  7. tom_s

    Member

    Jun 27, 2014
    285
    333
    couldn't have typed it better myself

    would have left that bit out, social etiquette.... :)

    quoting Schumann reference wikipedia -

    so depending on where on this planet you happen to reside, your box would need to be tuned to the specific area to cancel out 'harmonics'

    i have read a lot regarding planetary harmonics and firmly believe this would be firm contender to all the free energy devices available on the internet.

    aside from being tuned to your local part of planet, i don't understand why you would need to amplify the signal.

    the output of the 555 (pin 3) could be fed into a normal amplifier. had a quick look at the circuit, the signal could be modified to near sine wave if not there already.
     
  8. KabulDubai

    New Member

    Jul 19, 2014
    12
    3
    In fact,amplifying ELF depends upon the french language ARSA around the people who speak french,like a round big around their homes which is sent from France to obtain work from people who have a degree or are knowledgeable in electronics engineering as reported by your country's educational institutions like mine was Urdu University in (Gulshan-i-Iqbal area)karachi,pakistan in 2004-05 but my venue was different.
    In fact,systems engineering and requirements engineering best solves all these problems when dealing with any amplifications/impedence/using DOLBY Sounds or CHROME for which AKAI Co,Ltd best helps you in Japan.
     
  9. Sinus23

    Member

    Sep 7, 2013
    163
    411
    If I understand this correctly. You want to add and amplify a constant 7.83hz squarewave or sinewave with the whatever you are listening to? As in not amplifying the frequency from the sound itself.

    Ps. Wouldn't the squarewave just become annoying clicks 15.6 times per second? I would ask that man again and get a better explanation.
     
    Last edited: Jul 19, 2014
  10. johnsy

    Thread Starter New Member

    Jul 3, 2014
    28
    0
    While i appreciate interest in this thread, would it be possible to keep personal opinions without having tested such device nor having felt or not the effects to oneself.

    I just want to know if anyone knows how to amplify frequencies below 10hz.

    If you already have a definite opinion on the matter, good for you.


    My friend explained more about it but most of it concerned health treatment (interesting nonetheless), especially acute anxiety in postpartum depression.


    I guess this affect behaviour pattern, which if i follow this article is correct:



    "Schumann's resonance forms a natural feedback loop with the human mind/body.

    This pulse acts as a "driver" of our brains and can also potentially carry information.

    Functional processes' may be altered and new patterns of behavior Facilitated through the brain's web of inhibitory and excitatory feedback networks.

    Functional processes' may be altered and new patterns of behavior Facilitated through the brain's web of inhibitory and excitatory feedback networks."



    Studies have been done on isolating subjects from this particular frequency or following harmonic and this resulted in increasingly confused behaviour including acute to severe anxiety.



    As this is not a neuroscientific themed forum, i prefer to keep this strictly about the circuit and the amplifier. Once again i have not tested this device, but have encountered someone who does.



    No. what i want to do is simply generate a frequency and amplify it (the output is connected to either a coil or a pcb antenna.

    Simple as that.

    From all i have read there is no mention of this frequency of following harmonics being audible, they are either "broadcasted and/or transmitted" to a coil, antenna etc... while the subject was monitored.




    I'll ask the owner of the revive more about it when i meet his friends.
     
    Last edited: Jul 19, 2014
  11. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,804
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    In post #1 the 'little grey box' is sitting on another box also bearing the label 'Acoustic revive'. Is there EM coupling between the pcb coil shown and some other coil (not shown) in that other box? What is the function of the other box?
     
  12. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    So why would anyone want to own one of these things? Having read that I think 'revive' is a mis-nomer :).
     
  13. johnsy

    Thread Starter New Member

    Jul 3, 2014
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    0
    No. the other box is a demagnetizer who was probably chosen for size comparison.

    A mistake on my part, it is the isolation "from" it:

    "Studies have been done on isolating subjects from this particular frequency or following harmonic and this resulted in increasingly confused behaviour including acute to severe anxiety."


    (now corrected in the original post)


    The "revive" name was chosen as people says they re-experience, their music.
     
    Last edited: Jul 19, 2014
  14. Sinus23

    Member

    Sep 7, 2013
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    411
    Sorry my bad I somehow thought you were adding it as a soundwave through the speakers. As being audible. If it is a square wave and is loud enough Im sure you could hear the speaker while it jumped back and forth at this rate.

    anyway carry on.
     
  15. johnsy

    Thread Starter New Member

    Jul 3, 2014
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    Last edited: Jul 19, 2014
  16. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,061
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    Run your device into a powered subwoofer. Read the specs and make sure it will go down to 10 Hz. Just remember that 6hz is sub-sonic if it is a sine wave. If it is a square wave, you will hear powerful thumping as the speaker slams from inner limit to outer limit - a thump or click (depending on the size of the speakers, internal damping on the speakers and capacitive coupling of the speakers. On the other hand, if the voice coils have enough inductance, the square input wave will be rounded a bit and thumping will be abated slightly.

    I appreciate your effort to keep dollars flowing in the economy.
     
  17. johnsy

    Thread Starter New Member

    Jul 3, 2014
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    Once again while i certainly appreciate the attention concerning the subject, nothing will be heard the output is connected to the antenna/coil.

    I hope this does make it finally clear.

    Just need to amplify the output.

    If anyone has a schematic, i'll really appreciate it.


    I'm designing the pcb antenna (for the lack of a better word), and will do the same for the coil later.
     
  18. bertus

    Administrator

    Apr 5, 2008
    15,648
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    Hello,

    Not to discourage you, but I think it is a scam.
    The coil used is bifilar wound like in tesla's patent.
    http://en.wikipedia.org/wiki/Bifilar_coil

    Later Stan Meyer the scammer used the coil in one of "his designs"
    In this thread you can read more about it:
    Stan Meiyers V1C

    Bertus
     
  19. johnsy

    Thread Starter New Member

    Jul 3, 2014
    28
    0
    Hello bertus,


    Not at all, while it is good to read on other theories, opinions, etc... i prefer to experience things myself.

    in this case assembling the circuit, testing the output, waveforms and from there i'll see if there is any effects at all on me.

    I also happen to know someone with absolute pitch, so it should rather be interesting if a recordingis is actually "experienced differently" (be it actually "heard" or if the listener is in some way involved emotionally in a specific manner)

    I'll be testing six different coils of various shapes and sizes (pcb's and magnet wires).

    This project is far from being time consuming nor is it costly (far less than 10$) and
    my question concerning this project is simple which is:

    "Amplifying the output of the modules i have shown in this thread."

    That is all.
     
    Last edited: Jul 19, 2014
  20. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    To what level do you expect signal to be amplified?
    In the 555 schematics the coil is driven with a resistor in series.
    This resistor will reduce the current in the coil.
    Depending on the type of 555 the current may be upto 200 mA.
    (the cmos type can not deliver that current).

    Bertus
     
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