Quote from: tarakan on May 24, 2014, 02:17:17 PM
Уважаемый semenihin-77,
какая схема из трех, приведенных в первом посте, у Вас лучше всего заработала?

Its the very first one with the C1815 transistor. However, a word of caution.  No-one has been able to replicate it, as essence of the circuit is not in the schematics but rather in the coils and the ferrite core used.
Understanding the principle behind the circuit is the key and I would suggest, with respect, to postpone your trip to the nearest RadioShack until you now exactly what you are about to do.

~A

This circuit seems to be the most realistic one and I want to replicate it.

I got it off this forum post and fixed it. Part of the circuit was misalligned with the rest.

Quote from: T-1000 on May 24, 2014, 06:38:04 AM

In regards to circuit in topic - it is operating in same way as akula's flashlights and both are from same source:
http://www.skif.biz/index.php?name=Pages&op=page&pid=103
https://yadi.sk/d/pYQJSGjKDEQVR


Cheers!

Thanks T-1000
I find it very interesting the part in the 2nd. Video where he attempts to power-up the GLED device with the battery, but the coil does *NOT* have the POT core attached.  In other words, it is just the coil bobbin in the circuit at this time without its POT core attached:

He momentarily touches the battery to the contacts and the smaller RED leds light-up for about 2 seconds and then die out..........

Then he attaches the POT core to the coil bobbin and places the *Metal* screw thru the POT core & bobbin and threads it *into* the PCB.

Now upon touching the battery to the contacts, ALL the LEDs light up very brightly and stay lit.........with the core & Screw in place.

The other interesting part in the 1st video is where he attempts to power-up the GLED and it starts up but the LEDS are dim..... then he grabs the screwdriver and tightens up the center screw on the POT core.

Now, with the center screw threaded into place on the PCB, he restarts the GLED and the LEDS all light up very brightly........

Appears to me that the center screw  plays a very serious role in the overall equation of operation.

Thanks again and take care, peace.
lost_bro

Quote from: tarakan on May 24, 2014, 05:50:44 PM
This circuit seems to be the most realistic one and I want to replicate it.

I got it off this forum post and fixed it. Part of the circuit was misalligned with the rest.

There is a separate discussion thread for this circuit. You might want to check it out.

~A

Quote from: avalon on May 24, 2014, 08:13:18 PM
There is a separate discussion thread for this circuit. You might want to check it out.

~A

What is it called?