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  • Looking for ring magnets supplier!

    Would anybody know of a good supplier of ring magnets? I have been looking around here and only found one store so far, they're specialized in all sorts of magnets but they haven't got what I'm looking for and custom orders have a minimum of 3000 dollars... that's way out of budget! They do have ring magnets but the inner diameter is at most 1.5 inch, too small and I don't know if it would be possible to increase the inner diameter with machinery.
    What am I looking for? Core ferrite, polarization over the diameter, outer diameter about 3 inch, inner diameter about 2.5 inch, and thickness about 2 inch, or that could be several aligned ring magnets also. If they have a website please include the link.
    TIA!

    Comment


    • Do you mean Speaker Magnets
      They are easy enough to get

      Comment


      • Originally posted by pjotterkjen View Post
        Would anybody know of a good supplier of ring magnets? I have been looking around here and only found one store so far, they're specialized in all sorts of magnets but they haven't got what I'm looking for and custom orders have a minimum of 3000 dollars... that's way out of budget! They do have ring magnets but the inner diameter is at most 1.5 inch, too small and I don't know if it would be possible to increase the inner diameter with machinery.
        What am I looking for? Core ferrite, polarization over the diameter, outer diameter about 3 inch, inner diameter about 2.5 inch, and thickness about 2 inch, or that could be several aligned ring magnets also. If they have a website please include the link.
        TIA!
        google_search for microwave magnets
        you can easy remove from old magnetron
        http://jaw.iinet.net.au/stuff/microwaveoven_7.jpg
        Stuff: Microwave Oven

        information here:
        Magnets around the house

        Comment


        • Thanks for the pointers, speaker magnets and microwave magnets, thanks! I've investigated a bit and it looks like the outer diameter is not the problem but finding a ring magnet with a suitable inner diameter will be the main issue.

          About the core material, I mentioned ferrite, but thinking about what Hendershot was using it was most likely not ferrite, but more like alnico or similar so I'll be focussing on alnico.

          So I'm still on the outlook, any additional ideas are of course appreciated.

          Comment


          • Originally posted by pjotterkjen View Post
            Thanks for the pointers, speaker magnets and microwave magnets, thanks! I've investigated a bit and it looks like the outer diameter is not the problem but finding a ring magnet with a suitable inner diameter will be the main issue.

            About the core material, I mentioned ferrite, but thinking about what Hendershot was using it was most likely not ferrite, but more like alnico or similar so I'll be focussing on alnico.

            So I'm still on the outlook, any additional ideas are of course appreciated.
            Alnico Magnets, Alnico Permanent Magnets, Alnico Oriented Round Bars, India

            HUGE ROUND RING MAGNET ALNICO VERY NICE | eBay

            Alnico Ring Magnets | MSCDirect.com
            Last edited by wings; 01-17-2014, 09:58 PM.

            Comment


            • Vladamir Utkin

              Vladamir Utkin:
              This is the 93 page version (14/06/2012) and note that there is also a 64 page (version 5):

              http://www.free-energy-info.com/VladimirUtkin.pdf

              Can resonate with all that this man divulges as he elaborates on both Don Smith and Nikola Tesla's work where we have already been but lacking a true understanding.
              Like the idea of only current and no voltage flowing to supply the Load as this is what both were implying and this coming from the Ground.
              The 'Crystal Set Initiative' gains a new meaning after you read this.
              Eric Dollard may be too far ahead of us in theory to be able to understand fully and believe this pdf may help in that recognition of the true facts.

              Graham,
              Thanks for the information on the transformers as I totally agree and also the impulse discharge.
              The same reason a Flyback transformer has a 1mm gap through air to reduce the reluctance.
              May have to rethink on the type I am using.

              Mini Compass has arrived but still unable to see the 'neutral zone' but will continue to work on it as it IS important.
              The Russian video scam showed the resonators being wound with some 45 turns of wire on an Iron core and did some comparative tests on this and the 500 ohm bell ringer coil set.
              The voltage induced is directly dependent on the number of turns and this showed very clearly between the two.
              The scam coils were pretty useless at inducing any voltage at all but the 500 ohm were most receptive to an axial magnet pulse from the ends and also a
              Magnet stroke along their length and was able to induce several hundred millivolts.

              Smokey

              Comment


              • Something to chew on for serious MK3 replicators

                MK3 replicators, chew on this one for a while, and let us know your opinion about its practical use.

                Hendershot

                Personally I find the 57 dowels or pegs an interesting number, and here it is somehow becoming clear why Hendershot used this number, and why the coil diameter must be about 15 15/16 inch.

                I remember having seen the video by morpher44 where he showed a relation of the 57 pegs with PHI.

                It is also interesting that the page mentions that a small extra gap may be needed if the pegs inter-distance is applied using theory. I wonder would that be of great importance?

                It looks like the cap-coil is that sophisticated that tuning it to get it resonating with the other cap-coil - which must be as equal as possible - is such a difficult task and requires such specific knowledge that it is logical that no-one so far has made the device work, or if so, doesn't want to expose him-/herself.

                Anyways, for me being focused on the MK1/2 device the information presented is too specific to be able to use in my investigation, at least at this moment I cannot apply the theory behind it, but I may well be able to do that while fiddling around with my first experiments.

                Comment


                • Also keep in mind that Hendershot was an intuitive yet -- 'trial and error' kinda guy. I surmise that he got close to the fractal reality of the solution but ran out of time!

                  Maybe ~60 dowels (with adjusted circumference) is closer to the mark?
                  Last edited by Beamgate; 01-23-2014, 03:13 AM.
                  Resonance to all !

                  Comment


                  • Wesley Gary Neutral Zone

                    Wesley Gary Neutral Zone:
                    Not having any luck with observing the Neutral Zone so have set up the glass fishtank with magnets, iron bar and some iron filings to try to observe what could be happening.
                    The Magnet used, I believe to be out of a vintage speaker and is Alnico and has a hole through the centre of the 'U'.
                    Contrary to what I have Posted previously, I now believe I have a stack of Alnico in various shapes and sizes and why do I say Alnico now? No rust and no protective casing like in Neos.
                    Most of what I have are large solid short rods and some are diametrically magnetised.
                    Horseshoe magnets are 'traditionally' Alnico.

                    This shows how the filings organise themeselves and have purposefully spread out the filings from the centre to show that the magnetism flows preferably from the outside perimeter of the face and NOT necessarily from the middle.
                    Notice the many gaps that present themselves here that may indicate a preference for the magnetism to be 'bound' to other and nearby lines of force which may amplify the prospect for a 'Neutral zone'.:



                    Showing how the filings like to elevate themselves outwardly from the core area where those in the central 'U' of the magnet are horizontal:



                    Here we have a gap showing that the magnetism is no longer at the face but retreats back into the body nearly to the beginning of the 'U' - this is showing us something that is difficult to comprehend as the magnetism flow is NOT into the iron bar as an induction and actually has repulsed the magnetism back into itself.
                    No filings wanted to stay near the iron bar:



                    A large gap and shows a weak horizontal attraction to the iron bar but no activity in the core of the bell ringer coils:



                    Both magnet and iron bar without anything in between and we see much the same with the magnetism having retreated back into the bar and virtually no magnetic induction into the iron bar and just a weak recognition that it is there.
                    So what is going on here?:



                    Going to set the two coils back up over the bellringer coils and begin some pulsing at 50/60 hertz and with some circuit changes, see what we can come up with.
                    Of all that I attempted at a Hendershot 'Resonator' this was the best by far.
                    Will continue with experiments with the iron filings in an attempt to uncover more about the Neutral zone but believe we have something that needs attention and Leedskalnin may be able to assist here.

                    David Lowrance is particularly good in this area as he is more the 'passive' experimenter where I am into the high frequency and voltage or 'active' side.

                    Leave you with this thought - Why does the magnetic centre of each Pole retract back into the Magnet when confronted with a metal bar which in this case could be called a 'keeper' bar?
                    Will now do this experiment with block and ring Ferrites and those you see below including the 'split' Alnico barrels and diamagnetics - the square blocks may also be Alnico:



                    Your thoughts and observations here on this question would be most welcome.
                    Thanks.

                    For interest - Pictures are for 'Forum' 800 x 600.

                    Smokey
                    Last edited by David G Dawson; 01-23-2014, 04:49 AM. Reason: Wrong Picture

                    Comment


                    • Hendershot Generator - Magnets2

                      These are scalar magnets consisting of 3of 50 x 20 x 6 mm Ferrite block magnets with like Poles together and have been wound with Copper wire for a previous experiment.
                      All 3 are self held by the iron filings on the glass top but you will notice the very clear space down the middles where there is little magnetic attraction:



                      These are two Ferrite blocks with same Poles side by side and a metal closer of iron on the back side and you can see the others directly below on the floor of the tank.
                      Once again they are self supporting.
                      Iron filings are pretty well covered over the entire face of the magnets but it does look a little weak right down the middle and where the Magnets join, there is a distinctive gap which could be labelled a 'Neutral Zone':



                      However, once you turn these over to the metal closer side, you immediately create a space down the middle of the faces where there is little magnetism:



                      I have been looking to see how you can generate a neutral or magnetic null area and those above show how it can be done.
                      Still have no answer as to why the magnetism retreats away from a closer or keeper or any other attracted body.
                      Have been looking for flat and thin and parallel side horseshoe magnets but not available anywhere but have cleaned up the Ericsson Magneto and will use those magnets for the Patent experiments.

                      Smokey
                      Last edited by David G Dawson; 01-24-2014, 12:17 AM. Reason: Gap at Magnet join

                      Comment


                      • Hi David,

                        Brilliant work, and exactly what I thought of trying for myself but no facilities for, and presently no time for either. Good on you !

                        Look at your third photograph in Post729 -
                        http://imagizer.imageshack.us/v2/800...0/856/wzrj.jpg

                        Does the lack of field line gradient - filings - between the magnet and the armature not indicate that the field induced within the armature has become entirely in N-N:S-S parallel with the field of the magnet ?
                        This such that the peak of field within the magnet becomes located closer to the curve and away from the pole pieces, as we must learn to expect within all metal magnets because the fields within them are always three dimensionally flexible, and much more so than within the more powerful neodimiums ?

                        Look at your fourth photograph -
                        http://imagizer.imageshack.us/v2/800...0/855/vcdi.jpg

                        Do the filings not indicate field lines between the magnet and the armature, such that the field induced within the armature is now entirely in N-S:N-S series with respect to the field of the magnet ?
                        Hence, do the filings not now indicate field reversals between the magnet poles and the armature ends, such that the peak field has now been series pulled outwardly down its polar limbs ?

                        Maybe you have just illustrated exactly what Wesley Gary reported, and this might be confirmable by placing a tiny field compass at the exact centre of the armature away from the magnet to monitor armature fields at both of its positions w.r.t. the magnet ?

                        Many more field related imaginations could apply to both Gary's and Hendershot's magnetic circuits, but I wonder if first you could check whether you have confirmed Wesley's parallel alignment induced armature field reversal ?

                        Cheers ........... Graham.
                        .
                        Last edited by GSM; 01-23-2014, 12:48 PM.

                        Comment


                        • Originally posted by David G Dawson View Post

                          Why does the magnetic centre of each Pole retract back into the Magnet when confronted with a metal bar which in this case could be called a 'keeper' bar?
                          Hello David, thanks for posting this, very interesting stuff.

                          Answering your question, there is obviously a counter magnetic field that 'pushes' the lines of force to the surrounding air. This opposing magnetic field must be from the combination of the keeper with the solenoids attached.

                          Since you are the guy around here that seems to be lucky enough to have all sorts of things to play with, I wonder if you could add one experiment, that is repeat the experiment with the same setup as shown in your pictures, but now with an air gap between the two solenoids and the keeper bar.

                          I ask this because from what I've seen from the Arthur Aho device pictures published by crusty in his document (and other pictures too), the keeper bar looks to be practically touching the horseshoe magnet.

                          Then with the adjustment screw, the airgap created between the solenoids and keeper is varied - but the keeper does not change its position.

                          I do miss this set up in your tests, so I'd be very curious to see if you can add this test, and then while having those filings on the U magnet, apply a specific pulsating signal on the solenoids, this to see if you can get this bar floating / buzzing.

                          My thought is that the keeper on one side (when applying the input signal) is attracted by one solenoid and at the same time being repelled by the other solenoid; when the signal inverts itself, the first solenoid should repel the keeper, and the other should attract it; thus, this should visibly and audibly make the keeper trying to oscillate in its space.

                          It would help I think to fix the middle of the keeper with a pivot in the middle, although in the pictures I didn't spot any pivot in the keeper.

                          And the frequency of the applied signal should be low but there's a lot of talk about this 60 Hz so that would be something to try, and of course lower and higher harmonics.

                          I hope you have the time and patience to execute the test and publish your results with your excellent picture quality. Thanks for doing and publishing this stuff, its both amazing quality and we can learn a lot from it.

                          Comment


                          • Hendershot Generator - Magnets

                            Graham, pjotterkjen,
                            Thankyou for your inputs.
                            Yes, I think our progressive thoughts here with the experiments is similar but initially with no outside energy source to see if we can't emulate Gary and his neutral zone.
                            Will do a setup with the Magnet by itself on its side to see where the 'home' of the magnetism is located and suggest it is going to be at the junction of the 'U' as displayed and does not actually retract into itself.
                            Still don't know why we don't see an attraction into the iron bar - I turned that around later to see if I may have accidentally polarised the plate but not the case.
                            Yes, I agree, the plate is going to be see-sawing between the two gaps of the horseshoe and will make up a better sled for the bellringer coils where I have some sort of micrometer control and can then place this up to the glass to confirm magnetic arrangement - was not happy with my first as I had limited control.
                            Will also attempt to identify the 'Bloch Wall' using the iron filings but suggest this is better comprehended by using a small round axial Neo on a larger block Ferrite as the barrier becomes clearly evident.

                            I am attracted to Magnets for some unknown reason as they indicate an energy source that is permanent and have quite a large collection here as is part shown in the mixed box full that came from Adelaide but we know so little about this energy and how it manifests or can be utilised.
                            What I have here is a magnet 'tickler' that is a small dc motor with an offset oscillating wire arm that detects magnet null zones which I did not recognise earlier as Wesley Gary was not then a part of the picture.
                            This is from many years ago and will have to trace back for the information - will put up a picture after I find the detail.
                            However, I don't think this will assist us here as this was used for the Sweet VTA which I have just reviewed and see an error in my previous experiments and a need to return but this happens every day where I see the 'light' with a greater understanding which is my own and not from outside.
                            The Lab is full of these devices, built, tested, work and are put aside for a later date and is all a part of the understanding process.

                            Thankyou for the observations and suggestions and will see if we can't make it happen.

                            Smokey

                            Comment


                            • Originally posted by David G Dawson View Post
                              Yes, I think our progressive thoughts here with the experiments is similar .....
                              Yes, I agree, the plate is going to be see-sawing between the two gaps of the horseshoe and will .....
                              Smokey
                              I don't think the armature was see-sawing.

                              I could however imagine a pulse of Hendershot's twin coils acting like a magnetic switch at the centre of the armature, such that recovering armature field is momentarily transduced by the coils as a freely induced output pulse immediately afterwards, and this being due to reluctance flexibilities within the materials used.

                              Additional thoughts here have for some time run to a motionless but critically positioned overwound armature like Wesley Gary's, only here, it being separately electronic winding pulsed instead of mechanically moved in order to induce the flip from parallel into the series magnetic polarity field reversal, whereafter the armature would freely generate another half cycle of electrical output as the magnet re-induced a parallel field alignment through the armature.
                              In other words, use electronics to move the field as a substitute for Wesley's mechanical cam and pivot; higher frequency = higher output.

                              Further thoughts relate to Wesley using a thin armature for speedy mechanical field reversals, whereas Lester's armature was thicker but externally (magnetically) switched.

                              Cheers ............... Graham.
                              .
                              Last edited by GSM; 01-24-2014, 02:13 PM. Reason: wrongly wrote Gary's instead of Lester's

                              Comment


                              • Hendershot - Gary Magnets

                                Going to make up my own horseshoe Magnets.
                                Soft Iron I have here is 0.7mm and will need 4 sheets together, probably
                                bolted in 3 places to give me near a 3mm thick Magnet.
                                Going for a 6" x 3" with 3/4" tangs.
                                Tested cutting the sheet with hand cutters and worked well.
                                Will need 12 to give me 3 identical Magnets.
                                Thin disc Neos can now be used on the face or sides to provide the
                                magnetic ability.
                                The diametrically magnetised Neos measure 12.5 x 6.25mm and could be
                                glued to the front face but tend to think a thin 20mm Neo disc to the side
                                may be better as Graham suggested earlier.
                                Going to replicate Wesley Gary's Fig. 2/3&4.
                                The centre of the 'U' is bent out at right angles and then cut with the
                                hand cutters and the remaining bend (1/4" or less) is hammered back into
                                a flat saving much work - metal responded well to hammering.

                                Not real sure that I am going to agree with a 'Neutral Zone' as there is
                                a 'something' that appears to happen just before the Magnets close on
                                attraction - bit like an instant but brief repulsion where the Poles are
                                inverted into opposition.
                                Gary states: "The neutral line is shown to extend completely around the
                                magnet" and could well be what I have described above.
                                Could be like a scalar opposition as the field lines bend before closing
                                on actual contact.
                                Chaos theory here may help - imagine what is happening as this brief
                                closing period is occurring.

                                The 3 sets of Magnets I have here in scalar opposition were built for a
                                'Scalar Beamer' which I was unable to get to function.
                                The reason why is stated that the Magnets I was using were not Barium
                                types just as replications of the Sweet VTA did not work due to the sole
                                exclusion of Barium from the Magnet's composition.
                                I have many Magnets here now from about the 50s and 60s but how do you
                                determine the composition of a Magnet and that is what the 'Magnet
                                Tickler' was for.
                                More on this later.

                                Building a new sled for the bellringer coils with micrometer adjustment.

                                Later:
                                Finished cutting the rectangles and managed to get 15 out of the sheet so may go to 5 per Magnet giving 3.5mm thickness.
                                First set of 5 is cut ready for the centres to be cut out - hard on the hands but working smoothly.

                                Have found a cheap 3" alloy Mitre Clamp which can be cut in two to be used for the vernier control on the bellringer sled.
                                Whilst looking also realised that a lot of my vintage buys of equipment use vernier controls and will see what is available there - this is all quality stuff that you simply cannot buy today.

                                Smokey

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