Dr Ronald Stiffler SEC technology

[AlienGrey]

Deleted This ain't no longer the Dr Stiffler as it's turning into another Dally TK thread

Sorry about that.

AG

[gyulasun]

Hi Nick,

Thanks for showing your setup that is fine and surely can provide a nice sine wave between the 1 to 2 MHz range with an adjustable amplitude of your wish.
But I think you still need to wind another single layer coil with roughly similar mechanical sizes the secondary coil now has and when you have this new coil, then you could test a Dr Stiffler setup which has only a single coil i.e. not his presently the latest one which has already two coils in the current loop that includes a single super bright LED too.

I think if you try to see if you can tune your present secondary into a "spatial (spacial?) resonant" mode and do not wish to use an additional coil of similar size, then your setup would differ from that of the Doc setup because of the inductive coupling driving method the Kacher 5 turn primary provides to the secondary now inductively. The Doc drives any of his recent setups by a single wire attached to the 'hot' output of a SG. In your case this can only be achieved by attaching a single wire to the hot (top) end of your secondary coil where a top load is normally attached if needed.

Of course, you can try to use your presently shown secondary coil in the recent Stiffler setup (that needs only one air core coil) and drive the secondary coil inductively from the 5 turn Kacher primary, so no need for a single wire drive as the Doc did.  In this case you need not make another single layer coil of similar size the secondary presently has.  IMHO though, in this case, you alter a little from the original Doc setup by using a different driving method, be aware of it, that is all.

Anyway, this my take on these and it remains to be seen whether a low power oscillator (not neccessarily a Kacher one) with 10-20V peak to peak voltages across its tank coil could or could not drive one of the Doc setups to get similar brightness for the Cree LEDs as he has driven them from an SG.
His SG surely has the usual 50 Ohm output impedance. 20 Vpp is roughly 7 V RMS, so the power level involved at the output of his SG is nearly 1 Watt. But not the 1 W power drives his setup because only the hot output of the SG "sees" the load of his setup, this may be considered as a kind of capacitive load for the SG, and this load should have much less than 1 W power consumption.

Gyula

[Slider2732]

Some amazing posts with more details than I can fully appreciate in 1 reading !
Especially your help Gyula.
Things are moving on well with understandings and hopefully, along the way, Dr. Stiffler himself may join in. It's obvious to any reader that this thread has the intent of discovery, not just pure replication.

From witnessing the effects on the table at 1.5V and noting how receiving setups can actually run better by being further away from the Exciter, it's forming a different understanding.
Another understanding is that I think the crystal oscillator circuit has had a huge flaw. The output is supposed to be on the positive, but i've been running an N-channel MOSFET (AO3404, A49T), with which of course the negative signal is switched to 20V - oops
I do have the P-channel equivalents somewhere.
Otherwise, could we be looking at developing a variant of the Doc's SEC range, incorporating some sort of step up booster (JT) and be able to tune the MHz output like a sig gen with no screen ? Something where using variable pots or capacitors produces 20V at 13MHz...plus variances up and down. 

[Lidmotor]

  I mentioned this before but I did this basic experiment years ago.  I used both a 1MHZ and a 13MHz crystal oscillator running off a 9v battery to get the signal.  The simple circuit drove a pulse motor off a one wire feed.  The question is how much power was pumping out of that one wire.  I have a scope hooked up to the 1MHz circuit in this video:  https://www.youtube.com/watch?v=q4zEpTpiais&t=238s
   
   If I can find that 13MHz crystal I will put the rig together again and take another look.

  ---- Rusty

[gyulasun]

Hi Slider,

Sorry but I do not get this:  "Another understanding is that I think the crystal oscillator circuit has had a huge flaw. The output is supposed to be on the positive, but i've been running an N-channel MOSFET (AO3404, A49T), with which of course the negative signal is switched to 20V - oops"

What is exactly the flaw? 

Which output did you mean: the crystal oscillator or the FET amplifier output? 

Could you make a simple hand drawn schematic on your oscillator and the MOSFET amplifier?

First it would good to build a normal oscillator with the 13.4 MHz crystal.  Then continue from there if an oscillator with a  low output impedance is needed to drive the Doc circuit through the single wire.
Here is a simple crystal oscillator, out of many variations, and it has a high impedance output point due to the 'hot' end of the resonant LC tank circuit.
Gyula