KA4EP Torch (kacher torch)

[TinselKoala]

@d3x0r

To break a simple supposed long running device into its parts to see why it might work. (some claim it's a supercap rebranded to look like a 2200uf cap; but I have caps that have 3 lines in a triange which they claimed was 'telltale signs' it was a supercap.  It means nothing.  I have some that have 6 (kinda like >-+-< .. a split X with a | in the middle) )

That's right, the pressure-relief scores on the tops of the capacitors can be in various styles and don't indicate anything in particular.

But... consider this. I've demonstrated that these circuits can run a long time on tiny batteries, much longer than on any reasonable supercap. The required battery or batteries could be concealed inside a potentiometer housing or inside a capacitor can. I'm sure I can get enough batteries into a typical can to run any of the LED devices for hours, if not days. Turning it on by a brief contact with an external battery is easy to manage.
However.. I have also demonstrated that similar circuits, especially if they involve a lot of inductance, are quite good at working without onboard power at all, just by picking up power that might be in the ambience... like in the near field of a powerful radio station's antenna and transmitter, or like near one of my very simple wireless power transmitters. Again, it would be a relatively simple matter to put a transmitting loop all the way around an entire room and have the wireless transmitter in a closet or even a small unnoticed box sitting around.
This is one possible explanation for why nobody has been able to make any self running devices using the circuits published. They don't have batteries in their cap cases or live close to their local hard-rock FM station.

[MarkE]

Hi,

I asked earlier but, what is the purpose of the cct?

Cct 1 (the Russian sch):
Is the energy passed into the storage cap at 'start' apparently less that what goes into the load?

Cct 2 (joule thief?):
This looks like a std step up dcdc converter (joule thief?), something which can be achieved much more efficiently with a $0.25 converter off the shelf...plus a small $0.25 inductor.

Have I got the wrong end of the stick here?
Making our own inductors, transformers and oscillators is fun (and a great learning exercise) but whats the underlying purpose of the Akula 'thing'?

You Tube hits.

[d3x0r]

Got it. Do you have any measurements for power in vs power out?

just been focusing on power in > 0.

[/font]Finally, 'gate' (along with drain and source) is typically used with field effect transistors, base (along with collector and emitter) with BJT's - mixing two naming conventions can cause confusion to those who don't know what you 'really' mean. Please don't take this the wrong way, I really am not trying to be an ass! 

dangit I thought I got all gate references replaced with base.

[d3x0r]

You Tube hits.

Not likely since he keeps making them private and didn't enable commercials.


https://www.youtube.com/watch?v=rbyJKRuzFLw engrish translation about ferroresonance principle.

[d3x0r]

(just for archival)


https://www.youtube.com/watch?v=kRVEE_9uTc0


Ruslan replication


Hmm was just saw a ruslan video on this; but seems that channel no longer exists... he was mostly complaining that he's made 0 money and it works and people call him a faker so he seemed frustrated... maybe it was a goodbye video(?)