Akula 1W PNP biasing

[TinselKoala]

Cool! A three-transistor, three LED, three coil Joule Thief that runs on three volts!











Do you think you'll be able to get more than three minutes run time out of it once the 3V battery is disconnected?


If you make changes in the wiring and the component values, and you fail to make a self-runner, although it oscillates and lights the LEDs... what then? Will you be able to say that Akula is again faking it? But you didn't use the right circuit! You changed values, you changed geometry, you changed core material, you changed the color of the insulation. You biased the PNP "correctly" when everyone knows that the secret to OU is _improper use_ of off the shelf components!  And so forth.

[Marsing]

tru168,

first sight, i saw it just another version of jt. and with understanding L3 on how it work we can remove many component from circuit, and make a simple one, T2,D2,D1,R4,led2 are the electron trap, yes build  this just for fun.

Tk,

Not sure how you can conclude it will run no longer than 3 minutes, probably because C1 values 1000/4000 uf, and yes i will change everything what i need, and......... you seems to talk to someone else. this thread is still baby.

[tru168]

Yes, I build it just for fun, I'm not go for OU in any way.  So I change the value a little, and maybe another new joule ringer. No harm experimenting a small circuit like this, I might learn something new too,  25 years in electronics circuit design, I still need to keep learning from others.
Let me know how it goes Marsing, I will share the result after I built it.

[scratchrobot]

Yes, I build it just for fun, I'm not go for OU in any way.  So I change the value a little, and maybe another new joule ringer. No harm experimenting a small circuit like this, I might learn something new too,  25 years in electronics circuit design, I still need to keep learning from others.
Let me know how it goes Marsing, I will share the result after I built it.

Exactly my motivation on trying these kind of circuits, just for fun and learning from others like TinselKoala 


Regards

[Marsing]

Yes, I build it just for fun, I'm not go for OU in any way.  So I change the value a little, and maybe another new joule ringer. No harm experimenting a small circuit like this, I might learn something new too,  25 years in electronics circuit design, I still need to keep learning from others.
Let me know how it goes Marsing, I will share the result after I built it.

Oh, well you have more experience than me, i need to learn from you, forgive me, LoL.

the interesting thing from akula circuit is there are always feedback to primary coils or reverse, it's hard  to formulate its basic concept, maybe you can. vid below shows a weird effect, i think the missing part / not shown from the vid is a synchronization.

Plasma Spark Mod by Aaron Murakami & Peter Lindemann,
www.youtube.com/watch?v=9oyrzLmyxeQ