WORLD WIDE FERRITE MANUFACTURERSMy own VB6 ferrite calculation program to get the AL value from unknown toroids. After a resonance test put the data in the program, you directly get the AL and Q results. It works with both a TOP R as a TOP C signal feed. Now version 3 which has an embedded documentation module in a separate window. Click for total XP or WIN7 screenshot. Results are patched from the calculation window to a line in the document window. INTRODUCTION. You are at the best, free online Basic Electronics Course. Just read the brief blocks of text, view the videos, and check out some of the screened. MULL5040000 Ferrite Sheets. Laird MULL series flexible ferrite sheets offer an innovative approach to improve. Dimensions 60. 00 x 0. An integrated circuit or monolithic integrated circuit also referred to as an IC, a chip, or a microchip is a set of electronic circuits on one small flat piece or. Transformers and inductors for SMPS power supplies design principles, operation theory, flux density equations for various waveforms. Free design software. Ferrite Core Inductor Software Applications' title='Ferrite Core Inductor Software Applications' />Power Inductor series from Samsung ElectroMechanics Inductor Lineup are High Efficiency Power Inductors that are used in PMIC and DCDC converters. ON7YD 136 kHz technical pages homebrew stuff last updated on. Magnetics Design and Analysis, Transformer and Inductor Design and Modeling. Ferrite and toroid links. My own AL calculation software Interface switchable between NL and the UK language. The VB6 calculation program. FERRICALC in a ZIP file together with the postscript overlay in Dutch and English. Rename the version you need to the standard name RINGBLAD3. PS. The results are patched as an EPS print overlay in the original renamed example PS print file. This. PS file should be available in the same folder. It is programmed with line drawing commands in postscript code. There is a Dutch and English version available. Also for the fill in sheet. As an empty English fill in sheet in PDF it looks like this, English version use it during measuring, auto filled in with the program it looks like this. Click ZIP icon to get the VB6 runtime and OCX files for FERRICALC if needed. Or go directly via the LINK to the page with all the ferrite backgound information, and how to make the measurement test setup and all other details. Pictures from the old and improved measuring modules. Click to enlarge. MAGNETIC ANTENNAE. FOR ULFDetection. Schumann resonances and other electromagnetic phenomena. Hz. By Hans Michlmayr. The emphasis here is on the detection of natural. Schumann. Resonances from 8. Hz. Schumann resonances are generated by the. This mechanism is much the same as generating microwaves. Play A Pokemon Game. The earth ionosphere cavity is physically. The fundamental frequency. Hz, with several harmonics and other wave guide modes making. Hz. The height of the ionosphere. The Schumann resonances are fairly broad, unlike man made. The reception of Schumann resonances. These are out lined as follows, together with. THE ANTENNASOne is simply a loop in the ground. A 4. 0 core telephone. All the cores are connected in series with a centre. The overall. loop inductance is 4. H, total resistance 5. Ohms. Although it is capable. Hz into the VLF region, its principal use. Hz.  Next I constructed a 2. Octoloop. left image. Its effective window area is 2. The winding. was made with a length of 1. The Octoloop was operated at various times as high. VLF, and as low as 2 Hz. Its principal use was the range 1 8 k. Hz. but more recently it was actually my first antenna with which I was able. Schumann resonances. The major drawback of the Octoloop is its sensitivity. Finally I had to construct the type of device with. Schumann resonances, namely. The finished coils resistance is 3. Ohms, its. inductance 1. H. 1. 0 lengths of 3mm thick flat steel bar of various. BACK END SIGNAL. PROCESSINGThe signals can be directly switched to the output. B or filtered via low pass and or high pass filters. Each. filter consists of a six pole Butterworth type, switchable in 1. The final output normally drives. PCs SB card for signals 5. Hz. Signal analysis. SPECTROGRAM, a very useful spectrum analysis program. Around the clock monitoring can be implemented by. IK1. QFK called 2. Each spectrum screen display. I also use a standard AD converter from PICOTechnology. ADC 1. 1, which is a 1. This ADC is packaged. DB 2. 5 plug shell and connects directly into one of the LPT ports. PC. The software is called PICOSCOPE, which also contains an audio. FFT formats, etc. I mostly use. this for observations below 2. Hz. SCHUMANN RESONANCES. RECORDINGSDetection and recording of Schumann resonances. Initially I wanted to. Schumanns. Renato IK1. QFK showed me that it was almost impossible. Vertical polarization was required. Thats why I built the 2. Octoloop. which made Schumann resonance detection possible. But due to loop microphonics. Finally the big induction coil was built this enables reception. I call this collectively. Because during the early evening hours the various. Hz slowly disappear and during. Throughout the experimentations with Schumann resonance. This may well be tied in with the presence of H. V. power lines within. So far I never had the opportunity to escape. Australian interior with my induction coil and PC, and. Im tempted In my web site you can find many examples to illustrate. ULF INDUCTION. COIL COSTRUCTION NOTESIn principle the construction of a high inductance. Sketch. showing end view of coil and steel core Reality of course is always a bit different. Searching around in professional. Well, that was a start anyway. The required physical size was never. There a fairly small coil. Life is often. strange, and I found a very professional amateur in my general metro area. The construction of his 1. MagneticMagnet. html. That site should also be of considerable interest. After studying the material at his site and a meeting with him, I decided. The added interest was that we could both compare. This is a good distance. Next the coil former was constructed. This was simply a 8. The high impact PVC type orange colour. The end flanges are 5. I. D. an 8. 5mm O. D., made from 6mm thick acrylic. This coil former then had to be mounted in. I used altogether 9. The winding was controlled by supplying power to. VARIAC, set to 6. Vac, switched onoff by a foot switch. After a bit of experience it was possible to wind the wire with amazing. No attempt was made to layer wind. V, and conserving coil winding window. The whole winding was tapped at 3. No more wire was left. The total coil resistance. Ohm, the inductance 1. H.  Picture. of complete coil assembly. The coil was then tried out and found to be quite. I was almost expecting. A bit like building a. A huge chunk of ferrite material was never an option for this project. The best. material would have been transformer laminations, but not with the required. The next best thing was considered to be 3mm. Some may think inserting a steel pipe or even a solid. As. the coil former inside aperture is round instead of square, several different. The overall length of all the bars is 2 metres. Adding the steel core made an unbelievably large. Receiving Schumann resonances was instantly possible. There was also a significant improvement in the ratio of weak signal to. The upper frequency limit of the whole assembly. Hz, but in this. Hz. Finally, the coil assembly had to be enclosed within. PVC pipe cover, made from 9. This would of course not be required for coils operating indoors. Other technical project details and spectrograms. Return to the main index.