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

[skycollection]

Vortex1.....i made a test with my "first" circuit (NO THE MULTI-VIBRATOR)  and i discover that the circuit ENTER IN SELF OSCILLATION with the four batteries, no failures, all the time swicht on the leds, and i made a test with two batteries and i need the rotor magnet. I think both circuits works very well but with 5.3 volts (4 baterries). What do you think...?
my e mail is: skycollection@hotmail.com  in case you want to write me....!

[MarkE]

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!

I notice that on eBay a number of Chinese sellers misuse acronyms.  They write things like LCR when the meter is a simple DMM with an LCD display.  eBay is the home of buyer beware.  There are LCR meters on eBay that definitely have distinct R, C, and L ranges, and they are available for less than $25.

[Pirate88179]

I notice that on eBay a number of Chinese sellers misuse acronyms.  They write things like LCR when the meter is a simple DMM with an LCD display.  eBay is the home of buyer beware.  There are LCR meters on eBay that definitely have distinct R, C, and L ranges, and they are available for less than $25.

Well, I googled the model number and some different sites other than ebay have it listed as an lcr multimeter.  However, some sites also show the same meter, and model number, and simply call it a digital multimeter.  So, considering their answers to those 2 questions on the ebay site, I believe I just ordered a cheap multimeter.  Oh well, I can always use another meter I suppose.  We shall see.

Bill

[Vortex1]

Hi Jorge

By the way, the complementary transistor multi vibrator circuit is not my creation, it goes back perhaps 50 years or more and is in any good transistor application manual of that period such as the GE transistor manual.

If you have a meter and can measure the resistance of your coils, that would be helpful to simulate.

Also the multi vibrator circuit can be made to work on just one battery by changing R1 to a lower value.

In addition to the excellent methods of TinselKoala, If you know the number of turns on your coil, you can get a good approximation of the inductance from any of a number of websites that do the calculation for you.

I'm sure there is one better suited to your coils, but this is a start:

e.g.   http://hyperphysics.phy-astr.gsu.edu/hbase/electric/indsol.html

[Vortex1]

Vortex1.....i made a test with my "first" circuit (NO THE MULTI-VIBRATOR)  and i discover that the circuit ENTER IN SELF OSCILLATION with the four batteries, no failures, all the time swicht on the leds, and i made a test with two batteries and i need the rotor magnet. I think both circuits works very well but with 5.3 volts (4 baterries). What do you think...?
my e mail is: skycollection@hotmail.com  in case you want to write me....!

Very good, so now is the time to make some power measurements to determine the efficiency of your circuits.

Starting with measuring power input by measuring input current and input voltage.....no guessing, you must make the measurements with meters in the circuit while it is running.

Then we can get to power output measurements. This can be a bit more difficult.

As you get good with your scope there are many techniques to do some of this with your scope. This has been taught on forums in the past by TK, Poynt99,
MarkE and Milehigh so I won't repeat it.

Lighting the lights is the very easy part. Determining the efficiency and optimizing the circuits for highest efficiency is where the real knowledge of coils and circuits is gained.

Kind Regards
Vortex1