Akula0083 30 Watt Self Running Generator.

[Thestone]

Hi All,
Updated values ​​on the schematic diagram components Akula0083-disassembled. . .

Sorry I was traveling, I found this on the web, very similar to these other schematics... so we maybe closed to it.

The Stone.

[TinselKoala]

Hi All,

I was looking at the TL494IN Chip again and some data on it is interesting:
                                               MIN           MAX         UNIT
fOSC     Oscillator frequency       1              300           kHz
CT        Timing capacitor            0.47          10000       nF
RT        Timing resistor              1.8            500           kΩ

Pin 5 is the Timing Capacitor Pin. Pin 6 is the Timing Resistor Pin. Akula has uses a 10K and a 20K Pots and I cant quite read the Capacitor Values. I have guessed them to be 2.2pf and 8.2pf but looking at the sheet, this may be wrong.

I guess the point is, Akula has half the Pot value from one TL494IN to the other which supports the idea that he was looking for the Phase Shifted Frequency we have previously spoken about. See Picture Below:

All the Best

  Chris

PLEASE go back up and re-scale your images! 1024 pixels wide at most!
IrfanView is great but has a learning curve. The Gimp is also free and is nearly PhotoShop and is easy to use.

The TL494 is rated to 300 kHz but is actually capable of stable operation at much higher frequencies, if you get genuine Texas Instruments chips. I have used them at 800 kHz in an SSTC TinselKoil 2.0,  but had to boost the output with a driver stage.

[tysb3]

@ AlI

one more possibility how to find core resonance:

http://realstrannik.ru/media/kunena/attachments/6159/opredelenie_MR.pdf

[EMJunkie]

PLEASE go back up and re-scale your images! 1024 pixels wide at most!

@All - Very Sorry! I have done some already but I don't have access to the others. I have asked Stefan to delete them. Yup... Feeling like a Goose!   

All the Best

  Chris

[havuhung]

Hi All,
Thanks for the nice circuit diagram of people.

I explore the actual components on the circuit board Akula0083-Lantern No3-Disassembly Video: Noticed that two capacitors is the type commonly used in consumer electronics Polyester Film Capacitor, compared with the actual size of the are capacitors on the printed circuit board of the CRT monitor. Value capacitors with the size of it. I believe is similar to the hand-drawn circuit diagrams, and that value is 2.2nF and 8.2nF approximate.
Well, thank Mr Akula0083 shared and all your work.

Regards