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Overunity Machines Forum



Skycollection's "Pentafilar Pancake" inductively coupled "Overunity Potential".

Started by synchro1, February 24, 2015, 04:12:38 PM

Previous topic - Next topic

0 Members and 4 Guests are viewing this topic.

MarkE

Quote from: skycollection on March 07, 2015, 08:22:56 PM
Tinselkoala, for you is easy to make a test in the oscilloscope because you studied electronics, for me is the first time i connect an "incomplete oscilloscope" i don´t have the testers that i see in your video, i don´t have a teacher or person who can make a test for me, here in mexico do not exist interest in free energy, all people are very happy and pay extraordinary money for gas and energy because they don´t mind the future....! for me is difficult because i don´t have economic resourcers for investigation and experimentation, and is difficult to understant for me the first time how to use an oscilloscope.....! i apologize for the test you want, and i hope i can measure my pancake coils in the future....! i would like that somebody do the test for me but i need an economic doanations to send my pancake coils to a good laboratory in USA end trust in god...!
Saludos from mexico
If you do not have a precision capacitor, or a calibrated oscilloscope, or a frequency counter, then you can find the inductance of your windings by other means, such as a $25. LCR meter.

Here is one advertised for $7.14:  http://www.ebay.com/itm/gib-A830L-Digital-LCD-Capacitance-Inductance-LCR-Meter-Tester-Multimeter-NEW-/171505558794?pt=LH_DefaultDomain_2&hash=item27ee87250a

Pirate88179

Quote from: MarkE on March 07, 2015, 08:34:54 PM
If you do not have a precision capacitor, or a calibrated oscilloscope, or a frequency counter, then you can find the inductance of your windings by other means, such as a $25. LCR meter.

Here is one advertised for $7.14:  http://www.ebay.com/itm/gib-A830L-Digital-LCD-Capacitance-Inductance-LCR-Meter-Tester-Multimeter-NEW-/171505558794?pt=LH_DefaultDomain_2&hash=item27ee87250a

Mark:

Thanks!  I am still broke but I just ordered one of those meters.  It was $7.32 with the exchange rate.  If it works at all it will be very helpful.

Good find.

Bill
See the Joule thief Circuit Diagrams, etc. topic here:
http://www.overunity.com/index.php?topic=6942.0;topicseen

Vortex1

Quote from: MarkE on March 07, 2015, 08:34:54 PM
If you do not have a precision capacitor, or a calibrated oscilloscope, or a frequency counter, then you can find the inductance of your windings by other means, such as a $25. LCR meter.

Here is one advertised for $7.14:  http://www.ebay.com/itm/gib-A830L-Digital-LCD-Capacitance-Inductance-LCR-Meter-Tester-Multimeter-NEW-/171505558794?pt=LH_DefaultDomain_2&hash=item27ee87250a

Hi MarkE
That's one inexpensive meter (A830L), a lot better than no meter, but I wonder what the accuracy on L or C is.

Edit:Some people in the "questions section" of the listing are claiming it does not measure L or C and the description is wrong. When magnifying, I could not see L or C settings on the range switch. Buyers beware.


I  recommended the LC200A  because it had the best accuracy for the money back when I was checking specs a couple of years ago, but at $35 it may be out of reach for some. It also had a zeroing feature which I liked.

Regards
Vortex!

TinselKoala

@skycollection:
My "scoposcopy" videos are intended to show people how to use their oscilloscopes for various basic purposes. I was hoping that you would see something you could use in the two I posted above. I'm just trying to help you learn to use the "King of Test Equipment", your oscilloscope.

MarkE has started an "oscilloscope" thread to help people learn to use their equipment, and I think we've already helped at least one person to gain the basic knowledge necessary to make a few measurements with his scope.. I'm happy to answer questions and help you to learn how to use your scope, and I'm sure MarkE is also willing to help out.

You do not need the other items of equipment shown as long as your oscilloscope is functioning properly and is reasonably close to being "calibrated". A Function Generator of some kind is very good to have but even that isn't absolutely necessary. Most modern components, like capacitors and resistors, will generally be very close to their labelled values even if they are marked "10 percent" tolerance. Modern poly film capacitors especially are usually very close to the labelled values, I have found. Ceramic ones will vary a lot more. 

Using a camera with adjustable shutter speed, and the analog oscilloscope's "single shot" mode, you can even just use a battery to make a momentary contact with a tank circuit formed by connecting a capacitor whose value you know, in parallel with your unknown coil. The tank will "ring" for a few cycles at the resonant frequency of the tank when you break the connection to the battery. Capture this "single shot" on a photograph, read the frequency of the ringing using the scope's timebase setting and the graticule markers, and plug the frequency and the capacitor value into the resonant frequency calculator formula, and you can find your inductance to within a few percent. Just with the scope and a camera, no other equipment is necessary. This takes a bit of practice to do and it's not exactly "basic" scope usage, but when you've done it you can be proud of your new-found skills and your knowledge of "scoposcopy"!

skycollection

Tinselkoala, ok is correct that you say and i agreed with you, i will study more about my scope and i will make experiments and tests to understand more about my scope.
saludos Jorge