Akula0083 30 Watt Self Running Generator.

[eugene900]

Turn count and/or capacitor value C3.

On video you can see about 630khz resonant frequency.-(that could be harmonics)
Btw Your primary coil is not litz wire as in original video-don't know if is that any difference or no?

However here in this oscillator  is one frequency x .

Somewhere on 3v thred was user avalon post test with 2 frequencies and get "fero-resonance"

I try  -test- coil from dual tl494 experiment with 2 signal generators with test range 0-2Mhz-and nothing.
Best result (highes voltage) of mixing was nothing near avalon experiment.

Mc34063 50pcs ordered so will be possible to burn something :-))

[Enjoykin]

wire is litz wire, capacitor 330пФ (330pf) p=pico.

You will get nothing untill you don't find ferro-resonance for ferrite.

Ferrites are like a women - every one need a "key" 

Hint: Take care about "winding directions" as i said in my previous posts. Flip ferrite halves. Do experiments don't wait "key in hands"
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Hey eugene900 - Do i see newest upgraded Rigol DS1054Z or is it Mirage ?? 

[havuhung]

Hi Enjoykin,
Ferrite cores in the image above can be found or purchased from? You can tell measurements Kohm / cm on a clean surface of the core. . . this is just a little comparison, the core that I'm there. . .


Thanks

[TinselKoala]

wire is litz wire, capacitor 330пФ (330pf) p=pico.

You will get nothing untill you don't find ferro-resonance for ferrite.

Ferrites are like a women - every one need a "key" 

Hint: Take care about "winding directions" as i said in my previous posts. Flip ferrite halves. Do experiments don't wait "key in hands"
-----------------------------------------------

Hey eugene900 - Do i see newest upgraded Rigol DS1054Z or is it Mirage ?? 

@Enjoykin:

Are you absolutely sure about that?

It is definitely true that standard markings for ceramic capacitors use the last digit as the exponent.
So capacitors marked "330" are 33 pF.
That is, 33 x 10⁰ = 33 pF
"331" means 330 pF, that is 33 x 10¹ = 330 pF
"332" is 3.3 nanoFarad, that is 33 x 10² = 3300 pf or 3.3 nF, etc.

Do you have any evidence for the "330 pF" value of those capacitors?



@eugene900:

Your scope isn't triggering properly! And you can save a screenshot to a USB thumbdrive in the front jack simply by pressing the "print" button at the top right...

[TinselKoala]

On video you can see about 630khz resonant frequency.-(that could be harmonics)

Yes, roughly. See the scopeshot from the video below. I make it about 615 kHz or so. Odd, isn't it? The scope is indicating a wrong value for the frequency displayed. (The video is a prime example of what I call "scope abuse", by the way.) This is the primary pulsation of the MC34063 chip, I think. A harmonic? Maybe...

My own build is pulsing at about 215 kHz with the 33 pF capacitors and the 220 uF electrolytic, using the same number of turns listed on the schematic. Odd, isn't it?

Btw Your primary coil is not litz wire as in original video-don't know if is that any difference or no?

Ah, I didn't notice that he used Litz wire. I have some but it's a bit smaller than what is in the video.

Does it make a difference or no? Well, there are any number of things that could "make a difference" to make any replication not work as a self-runner. It is up to the person claiming to have a self-runner to show that there is some difference: Compare Litz wire and ordinary magnet wire, all other variables kept the same, and show some difference in performance if there is any. Since my build doesn't self-run, it's easy to wave your hands about and say "well, he didn't use Litz wire, he didn't use a mystery ferrite core, he did his build at night on Thursday and wasn't holding his mouth right, so no wonder it doesn't work."  All of which without any evidence from the original claimant that any of those things actually do make a difference.  There are literally thousands of "third variables" that can be blamed for our replications not self-running... thickness of PC board, latitude of location, atmospheric pressure, exact ferrite dimensions, composition, aging.... it is always something. Send a working self-running unit to me, and I will explore the problem space thoroughly and rule out possible third variable problems. Otherwise.... good luck.

However here in this oscillator  is one frequency x .

Somewhere on 3v thred was user avalon post test with 2 frequencies and get "fero-resonance"

I try  -test- coil from dual tl494 experiment with 2 signal generators with test range 0-2Mhz-and nothing.
Best result (highes voltage) of mixing was nothing near avalon experiment.

Mc34063 50pcs ordered so will be possible to burn something :-))

I ordered 10 chips for about 3 dollars but they won't be here for another week or 10 days. Meanwhile I can get them for 1.00 each at the dollar store, inside a "usb phone charger cigarette lighter plug" thing.

I like your oscillator!