Selfrunning cold electricity circuit from Dr.Stiffler

[hartiberlin]

I justsaw,
that Dr.Stiffler has just published his new circuit diagram on his website
http://www.drstiffler.com/ce4.asp

Here it is:

[k4zep]

Ben,
I suspect that L1 adds enough inductance to force the impedance looking into it to be inductive. Then C1 cancels the inductive reactance so that the impedance looking into C1 is pure real at resonance. This allows more power from generator to be used since all of the voltage is going across a real impedance. I no longer have a lab so I can not check this myself.

That is very logical and basically the way I look at it. How do you show the return path for the RF??  Logically and to the core that is what bugs me more than anything!  I realize @ 7-10 MHz, capacitive reactance builds up fast and might be the return path for all the parasitic elements in the circuit.   Current peaks and voltage dips @ resonance around the input.  It always boils down to the fine points.  For my self who is more of a puttering builder, (darn it, this is JUST a hobby) I have always disliked the documenting of devices like this!  But then there comes a time like this........

Ben..

[k4zep]

I justsaw,
that Dr.Stiffler has just published his new circuit diagram on his website
http://www.drstiffler.com/ce4.asp

Here it is:

Great jumping Jehoshaphat...I have been worrying about a return ground, latest schematic shows everything with a common ground!  Sometimes you feel like a nut, sometimes you don't,  I.............do.................sheeesssssssh...

[xee]

Ben,
I would think that the best place to use for a return would be the generator ground return since the impedance the generator output sees is referenced to that point and you are trying to determine how much power is coming out of the generator (what load it sees).

[k4zep]

I justsaw,
that Dr.Stiffler has just published his new circuit diagram on his website
http://www.drstiffler.com/ce4.asp

Here it is:

The 555 is is not a good chip for this.  But either way, glad to see the func-gen gone.  I asked before and saw clearly Dr. S said no func-gen and all the post I hear about the freq from the func-gen.

The VCC and ground on the circuit can tell what power is put in and the Rl can tell output power.

I would still check it with a scope.  Also, 20Mhz?  That is a 555 timer, it ain't going there?  Maybe a new one is out that I have not heard about (but they have not done anything with that hobby timer chip for years)?

Last, the N-channel FETs are not a problem, or the Q's. but again confused on the 2 coils (with or without a core), with no values (rough ones posted if I read or have Ebay) and still I see that L3 in there..  Are there values for them?  Is the L3 a choke or something thrown in?  Like the first version or starting points?

I have not and will not build it until there are clear specs (and yes I have these parts and the same proto board). 

But looks like it is getting closer.  Will pop in soon and see where all are.

Ben, where in Florida PM me.

555 for the 1Hz. discharge, I'm In St. Petersburg, FL

Ben