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Mr Lester J Hendershot's magnetic generator.

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  • john_g
    replied
    Thanks Ewizard

    Originally posted by clarence View Post
    clarence here,

    tried to upload but it said to wait until later! thanks anyway , mike, onward!
    @Ewizard

    Thank for tip re sendspace:

    Download Hendershot in Farbe-translated.docx from Sendspace.com - send big files the easy way

    Regards

    John

    Leave a comment:


  • clarence
    replied
    Originally posted by john_g View Post
    Hi

    Here is a rough translation of the above doc:

    Hendershot in Farbe-translated.docx -- 3.9 meg

    Regards

    John
    clarence here,

    tried to upload but it said to wait until later! thanks anyway , mike, onward!

    Leave a comment:


  • ewizard
    replied
    Originally posted by john_g View Post
    Hi

    Here is a rough translation of the above doc:

    Hendershot in Farbe-translated.docx -- 3.9 meg

    Regards

    John
    Can't download anymore - it's setup so anything over 50 Megs (about 13 downloads) exceeds the limit allowed at that site. Could someone upload it elsewhere? I think sendspace.com is easy, no sign up needed and may allow more downloads.

    Leave a comment:


  • john_g
    replied
    Rough Translation

    Hi

    Here is a rough translation of the above doc:

    Hendershot in Farbe-translated.docx -- 3.9 meg

    Regards

    John

    Leave a comment:


  • clarence
    replied
    Originally posted by GSM View Post
    I am indebted to 'Crusty' who forwarded this file link today. Thank You Crusty.



    Check out the C1 long foil tabs emerging from the bottom of both coils !

    Is this the foil which collects internally radiated charge and maintains oscillation ? Thus being both an essential input trigger terminal, as well as for observing feedback via a HiZ scope probe ?

    See Crusty's own circuit drawing which he traced from the photos of this Aho generator, that might have been a self runner, if only temporary.

    Is that a radio or amplifier to the right of the main board, used to listen for oscillation start-up and tuning ?
    An AM radio is something I have used in the past to show whether an audio amplifier output stage is momentarily 'squegging' reactively on transients.

    Good to see your links too Morpher. I studied your Hendershot vids back in 2009-10, and yes there is much to consider in relation to Lester's NOT simplistic buzzers.

    Cheers ............ Graham.
    Hello GSM,
    clarence here,

    Do you possibly know how I might get a translation in english of the AHO document in the link you show. would definitely appreciate your time and consideration concerning this. I have salvaged the two ring magnets from an old microwave magnetron and as soon as I obtain the capacitors I plan on building it. thanks much Sir! mike, onward!

    PS: I believe the reason for the corrosion Hendershot experienced in the coffe can liner was due to galvanic dissimilar metals corrosion which I was familiar with in the military working with aluminium frame components and various different metals being attached. we simply used an appropriate dissimilar metals tape between surfaces. Im sure your probably familar with that however. to bad Lester didnt get to do the same.
    Last edited by clarence; 12-10-2012, 02:19 PM.

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  • Dave45
    replied
    I would think the high capacitance is to bring the frequency down to usable levels the frequency of the magnets field is unusable in its present form.

    GSM I like the idea of cutting the basket coils free from the board, why didnt I think of that good idea bro.

    It got mighty cold in Texas today, my shop is frigid I need to borrow some of that magnets field to run my heater

    Leave a comment:


  • Dave45
    replied
    Though stuck for 'hands-on' time here at the moment, I'm hoping to video the 'buzzer' 'neutral zone' field reversal reported by Wesley Gary
    Will be interesting to view your findings, thanks for sharing. This weekend I played with a previous project I have been working on for awhile, it will all come together when its time.
    Im going to wind the buzzer coils this week and play with them a bit, I cant afford the caps at the moment with Christmas and all, I thought of trying to make my own and have been researching it some, it seems doable consistency would be the trick.

    Leave a comment:


  • GSM
    replied
    [QUOTE=Dave45;217930]
    The buzzer coils have my attention these coils are drawing from the electric field of the magnet,
    QUOTE]

    Yes a first essential step as outlined by Chris.

    The buzzer coils are transducing domain alignment change withing the armature, it being the armature which 'draws' upon the magnetic field potential, through alternately induced states of physical field domain alignments, followed by motional electrical kinetic coil transduction.

    Cheers ......... Graham.
    Last edited by GSM; 12-10-2012, 12:35 PM.

    Leave a comment:


  • GSM
    replied
    Originally posted by boguslaw View Post
    Dave45

    I believe this b&w photo even if looks old is not the original working device. Am I right GSM ? If so, posting such is a danger of distracting people from the right path of replicating original device into the oblivion of someone else replication attempts...
    Hi Boguslaw.

    There are only two photographs I believe to be genuine and non-distraction records of a working Mk3 Hendershot generator;-
    one being the board demonstrated by Lester himself empowering a tube radio receiver;
    the other being one with clamp tuning whilst an on-board lamp is illuminated.

    We cannot counter the activities of those who willfully distract, and worse we cannot help those who become distracted, but PLEASE, will everybody here consider this fact -
    Lester Hendershot constructed his generators using components manufactured in his day - so any circuit using 1,000uF 400Vac capacitors is NOT going to be a Hendershot generator, especially if the coil assemblies are widely separated, and not even tin/ferrous or chrome/ferrous metal cored !!!!!
    Heck - anyone could run fine wires up a table leg to remotely illuminate a bank of incandescent lamps !
    CRITICAL THINKING AND DISCERNMENT REMAIN ESSENTIAL AT ALL TIMES.

    It has always been my understanding that field coupling between the Mk3 basket weave coil assemblies would be necessary, as indeed would have been the case with basket weave coil couplings to other windings in the Mk1-2.
    Thus it is possible that Lester favoured this method of coil construction, not only because of reduced inter-turn self capacitance, but because when completed and varnished or waxed, these coils would retain their form even after the fine wooden supports had been cut away from their original construction base, hence allowing a completed assembly to be moved about and positioned as necessary.

    Though stuck for 'hands-on' time here at the moment, I'm hoping to video the 'buzzer' 'neutral zone' field reversal reported by Wesley Gary, and yes Chris I do agree with you that this effect is indeed easier to observe when less powerful magnets are used.

    Cheers ........... Graham.
    Last edited by GSM; 12-10-2012, 12:32 PM.

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  • Dave45
    replied
    Once the system was built it would be easy to move components around, Im planning on building the basket coils on separate plexiglass sheets so I can move there positions relative to the magnet.
    The buzzer coils have my attention these coils are drawing from the electric field of the magnet,
    According to science a magnetic field resist's change of current flow in an inductor, the magnetic field of the magnet is resisting change in the current flow of the buzzer coils by adding to the current, this magnetic orientation needs to be studied, this shows us how to draw energy from a permanent magnet.

    Leave a comment:


  • boguslaw
    replied
    Dave45

    I believe this b&w photo even if looks old is not the original working device. Am I right GSM ? If so, posting such is a danger of distracting people from the right path of replicating original device into the oblivion of someone else replication attempts...

    Leave a comment:


  • Dave45
    replied
    Hey Clarence I noticed that too, its said he built several different versions, I think the transformers would work better in the magnetic field of the basket coils than the caps.
    I found these caps at mouser 1000 uf capacitor Film Capacitors | Mouser Im not sure if they will work what do you guy's think they are not electrolytic they are film used in dc filtering.

    Leave a comment:


  • GSM
    replied
    Originally posted by clarence View Post
    however I have not noticed any kind of wires leading from this metal area. just my observations for now I will get back with the wire routing when I am surely positive about what I see! till then LOL, mike,onward!

    Leave a comment:


  • clarence
    replied
    Originally posted by Dave45 View Post
    Do you see a correlation between these two devices


    Permanent Magnet Motor V-gate Re-gauging from Roobert33 - YouTube
    Hendershot did it
    hello Dave45,
    clarence here-

    I was looking at the hendershot photo view you show in your post and it finally jumped out to me that there wasnt any capacitors inside the basket weaves! rather that was where the two transformers were placed and you could see their four wires leading in and out.! I also used the VIEW button on the top left of my computer and went to the 400% click and there is a whole lot of useful information that becomes available when you do that.

    I am at presently compareing all of the wire routeing that becomes apparent! also I noticed that all of the capacitors were outside the baskets! I noticed that the magnet and bar showed that the magnet was the type with the odd magnetron shape fron a radar type magnetron setup that he had salvaged! the buzzer coil setup was built on a bolt screw type adjustable araingement.

    there does seem to be a type of thin metal inner backing as an inside containment wall to the baskets. however I have not noticed any kind of wires leading from this metal area. just my observations for now I will get back with the wire routing when I am surely positive about what I see! till then LOL, mike,onward!

    Leave a comment:


  • ChrisW
    replied

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