Dr Ronald Stiffler SEC technology

[Slider2732]

I thought that too and have only done preliminary testing, but am unsure if wires have to be kept really short and etc.
Every MOSFET here that i'm looking up is too slow, it seems.
Mention has been made of the IRF510, which unfortunately I don't have. Have got 610, 640 and others and they appear to come in as a total function time of around 90ns at best.
13.6MHz requires 70ns. Again, am unsure if i'm looking at those times correctly...it would be easier if they'd put the whole switching time, rather than the rise and fall times.
Maybe a transistor is a better choice, most run at a far higher speed than MOSFETs.
Plus it would be a 1 stage solution, rather than using a transistor first, to feed the MOSFET at its Gate voltage.
Can only plug stuff in and see.
Your scope that's now running may help to verify the transistor idea too.

[Lidmotor]

Slider--- I thought about just trying an MPSA06 or even a 2N2222 at 12v and see what happens. Just keep the current down under 100 Ma and see what happens.  Glue a penny on top like you have suggested on the Slayer exciters.  The worst that can happen is blue smoke and a bad smell for awhile. If the temp isn't too bad gradually up voltage to 20v.  You can double up the transistor also. 

---Lidmotor

[SkyWatcher123]

Hi all, I was inspired by lidmotor to make a version of his latest slayer exciter light.
Thanks for sharing lidmotor.

Used ferrite tube core, one layer 30awg. magnet wire over paper tube, which is over the core.
Not sure of primary turns, made it previously, 24awg. magnet iwre, at least 12 turns, not wound tight.
Using 5 volt usb power supply.
pn424r PNP high voltage transistor, same size as 2n2222.
High speed, higher amp diode off base of transistor.
Two 1n4148 diodes off one end of 30awg. wire, into led bulb, any other diodes, meaning larger, cuased higher amp draw and less light output.
100 Kohm base resistor.
Feit ribbon led bulb, 3.6 watt, 40 watt equivalent, warm white, with circuitry removed.
Picture is blooming a bit, though it is fairly bright for 1/2 watt input, burns into eyes if you look at it, which i don't suggest.

5.06 volts, 110 milliamp input or .55 watts.
The transistor is only warm, not hot.
Will try and tweak for more brightness and efficiency.
peace love light

[Lidmotor]

Great news Skywatcher!  I was hoping someone else would try a Slayer Exciter on one of these new led bulbs.  It seems that you came to the same conclusion as I did about it.  It is a big bang for the buck light.  That is a lot of light for 1/2 a watt.  The simplicity of a Slayer Exciter is hard to beat.
  What I really like about these group projects is that we usually find out something new along the way.  People learn from each other, improve a design, and share it.   
   Tell us more about that bulb.  Is the circuit board separate?  Is the bulb easy to take apart? Where did you get it?  Cost?
 
  Many Thanks.   ---Lidmotor

[AlienGrey]

Hi Dr Stiffler has a couple more vids listed, shame about the sound.

https://www.youtube.com/watch?v=ZX56Ocniz_Y

https://www.youtube.com/watch?v=3KMU6ZM_vKM

https://www.youtube.com/watch?v=7kQZboyAU1k

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

AG