Slayer exciter questions and problem

[isaac hughes]

So I recently built a slayer exciter from an online schematic that uses the 2n2222 transistor, I wired everything up and it worked fine. I then decided to modify it a little bit and add a 2SC5242 NPN Epitaxial Silicon Transistor and swapped out the led for a diode that can handle a bit more power. this time though i hooked up four nine volt batteries in series giving me just under 36 volts, it worked just fine and even lit a florescent bulb brighter (and froze an electronic device I had nearby XD ) but when i was looking at the voltage it was dropping at a pretty fast pace until it couldn't power the secondary anymore. so the few questions i have is is there anything I could optimize or swap out to make it more efficient and last longer and would it be possible for me to connect a 12v 1A unregulated wall wart to it or should it be a regulated power supply, I will be mounting the circuit at a later time on perf board and make a proper primary winding.

Primary: 5 turns
Secondary: around 700-800
has a top load on the secondary

EDIT: the schematic is the original but the 2n2222 transistor and the led were swapped with the components listed above

 

[davenn]

how about showing us a schematic of what this is supposed to be

I have never heard of a "slayer exciter"



Dave

 

[isaac hughes]

how about showing us a schematic of what this is supposed to be

I have never heard of a "slayer exciter"



Dave

uploaded the schematic of the original

 

[HellasTechn]

Where have you got the coil from ?

 

[Bluejets]

New twist on an old theme...... http://www.instructables.com/id/How-to-Build-a-Slayer-Exciter/

One piece I find amusing in the parts required list ....... Some sort of round sphere to use as a top load. - ~$1

 

[duke37]

I do not know how this works without current in the secondary.

An led is different to a diode, it works similar to a Zener, with a voltage drop of under a volt in one direction and 2 or 3 V in the other direction so limiting the base/ emitter voltage. Exceeding this voltage will degrade the transistor and make it fail.

 

[isaac hughes]

Where have you got the coil from ?

sorry for taking a while to reply been busy. but as for the coil it is hand wound around a cut piece of pvc pipe

 

[isaac hughes]

I do not know how this works without current in the secondary.

An led is different to a diode, it works similar to a Zener, with a voltage drop of under a volt in one direction and 2 or 3 V in the other direction so limiting the base/ emitter voltage. Exceeding this voltage will degrade the transistor and make it fail.

i did not realize an led was similar to a Zener diode, that is interesting. and the problem i did have with exceeding the voltage was when i used the 2n2222 transistor it would get to hot to touch ( even tried to mess with the resistor values but would still get hot so i decided to use a beefier transistor and use a regular diode at higher voltages.

 

[HellasTechn]

sorry for taking a while to reply been busy. but as for the coil it is hand wound around a cut piece of pvc pipe

No problem, thank you !

 

[Sai Kishore]

In circuit diagram
And connection diagram
LED is connected different which is correct
How you made secondary coil with turns and pipe dimensions

 

[HellasTechn]

We should not forget about physics. We can NEVER get more energy than what we give !