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Author Topic: N.R.M.R.E. An investigation.  (Read 15708 times)

Offline Grumage

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Re: N.R.M.R.E. An investigation.
« Reply #60 on: April 15, 2017, 02:00:52 PM »
Dear Zephir.

Thank you for your last post.

Cheers Graham.

Free Energy | searching for free energy and discussing free energy

Re: N.R.M.R.E. An investigation.
« Reply #60 on: April 15, 2017, 02:00:52 PM »

Offline AlienGrey

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Re: N.R.M.R.E. An investigation.
« Reply #61 on: April 15, 2017, 02:27:03 PM »
What has the above really got to do with Nelsons thread I'm asking myself ! Zephyr ?
           *****   Please! go away and stop filling the thread up with unnecessary irrelevant clutter.  *****

I must say I watched Nelson's video which was nothing much like the original card but thanks anyway as I got to understand what he is doing. I think having a 'radio amateurs license degree' would help explain what's going on here much better and I expect Nelson has really done his homework and has a good memory ;).
 Could it be the whole thing is an exciter output device RFC and Aerial load coil radiant energy transmitter ?


Regards AG

Free Energy | searching for free energy and discussing free energy


Offline Zephir

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Re: N.R.M.R.E. An investigation.
« Reply #62 on: April 15, 2017, 03:08:25 PM »
Quote from: DogOne
Pay particular attention to how the circuit operates when it first goes into "berserk mode", because after just tens of seconds, you will never see this again quite the same.  I think the voltages actually damage the electrolytic capacitors

IMO from all circuit schematics follows, that the Darlington TR1/Q1 isn't protected against negative voltage spikes to base (passing through C4 capacitor and R1 trimmer). The PN junction of base electrode must be very narrow for to enable carriers drift and high amplification and therefore its reverse voltage remains limited to only few volts. The diode D2/D5 protects only electrolyte capacitors but not base.

Quote from: DogOne
He's a young guy, impatient and eager, with everything pretty much black or white.  I remember those days.

You see - and I wouldn't hurry with replication of Nelson's circuit without its understanding instead, until I wouldn't have lotta spare transistors... You omitted the inconspicuous but substantial collector wire passing the toroid coil in your replica. Without it the circuit cannot run as a parametric oscillator and its increased inductance also protects the transistor against voltage spikes (the toroid serves as a massive ferrite bead on the cable).

The mine and your definitions of impatience and eagerness may therefore differ: I'm quick and impatient - but with cautiousness only.

Quote from: AlienGrey
go away and stop filling the thread up with unnecessary irrelevant clutter

Says the truly right guy... ;-)

Offline Dog-One

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Re: N.R.M.R.E. An investigation.
« Reply #63 on: April 17, 2017, 07:50:52 AM »
A couple more items I dug up.  (While hunting for Verpies' totem pole lossless clamp circuit)


Offline Zephir

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Re: N.R.M.R.E. An investigation.
« Reply #64 on: April 17, 2017, 04:37:43 PM »
OK - but as I said, Nelson Rocha probably drew his wire through toroid coil for a reason - not just for saving space at his picture..;-)

Free Energy | searching for free energy and discussing free energy

Re: N.R.M.R.E. An investigation.
« Reply #64 on: April 17, 2017, 04:37:43 PM »
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Offline nelsonrochaa

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Re: N.R.M.R.E. An investigation.
« Reply #65 on: April 18, 2017, 02:14:34 PM »
A couple more items I dug up.  (While hunting for Verpies' totem pole lossless clamp circuit)

Hi Dog , hope you are nice , that circuit that you show in photo is other variant of same circuit , but unfortunately i don't have that circuit with me :(, i send some months ago to a friend in USA to him replicate  .   In general the two circuits only have some small differences but the base of operation is basically the same .
Wish you all the best ;)

Nelson Rocha


 

Offline TinselKoala

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Re: N.R.M.R.E. An investigation.
« Reply #66 on: April 20, 2017, 10:31:48 AM »
Progress report:


Free Energy | searching for free energy and discussing free energy

Re: N.R.M.R.E. An investigation.
« Reply #66 on: April 20, 2017, 10:31:48 AM »
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Offline Jimboot

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Re: N.R.M.R.E. An investigation.
« Reply #67 on: April 20, 2017, 10:49:33 AM »
Very nice, almost steampunk.  Are they the same gauge on both winds? They look uneven.

Offline TinselKoala

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Re: N.R.M.R.E. An investigation.
« Reply #68 on: April 20, 2017, 11:31:33 AM »
First light.

Well, it makes one hell of a Joule Thief, I'll say that much for it. 2.1 volts and about 210 mA input, lights up a NE-2 neon brilliantly. One "typical" Collector trace shown on the scopeshot. Adjusting the pot causes some radical changes. Still exploring.



Offline TinselKoala

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Re: N.R.M.R.E. An investigation.
« Reply #69 on: April 20, 2017, 11:33:52 AM »
Very nice, almost steampunk.  Are they the same gauge on both winds? They look uneven.

No, not the same gauge, the thin stuff is #27 and I don't know what the thicker stuff is. I would have used the thicker stuff all around but I ran out after one winding of 50 turns.

The core is a small CRT deflection yoke. I also have some smaller ferrite toroids wound and ready to swap in.

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Re: N.R.M.R.E. An investigation.
« Reply #69 on: April 20, 2017, 11:33:52 AM »
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Offline Grumage

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Re: N.R.M.R.E. An investigation.
« Reply #70 on: April 20, 2017, 12:17:00 PM »
Dear TinselKoala.

Excellent.....

I'll reply later, this last fortnight has been a seemingly never ending childminding session!! :)
Last day today, at least for this week.

Nice rising bounce..... As Dog-One has mentioned already be very vigilant as you raise the input voltage.

Kind regards, Graham.

Offline Jimboot

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Re: N.R.M.R.E. An investigation.
« Reply #71 on: April 20, 2017, 12:31:05 PM »
No, not the same gauge, the thin stuff is #27 and I don't know what the thicker stuff is. I would have used the thicker stuff all around but I ran out after one winding of 50 turns.

The core is a small CRT deflection yoke. I also have some smaller ferrite toroids wound and ready to swap in.


Wow that's bright. Are your cap values similar to Nelson's or the same? Is that an audio transformer? That trace is interesting, the ringing begins to rise just before the next pulse. Sorry for the dumb question but is there an easy way to alter the duty cycle with this build? I'm still waiting for a few parts.


Offline TinselKoala

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Re: N.R.M.R.E. An investigation.
« Reply #72 on: April 20, 2017, 12:39:51 PM »
Capacitance values are the same but I chose higher voltage ratings for the caps. I'm using UF3003 diodes instead of MUR440. I have some MUR1560 on reserve just in case but so far nothing has failed.  The little transformer is some random thing I pulled from a TV chassis, it has about the right turns ratio I think. I didn't connect the FWBridge on the output yet, just testing with the neon to show some output in a dramatic way. I imagine that open-circuit the output will rise to "HV radiant" status if the little transformer can take the strain.
The pot varies all kinds of things: duty cycle, frequency, that weird ringing, input current draw, peak voltage at collector.... the interplay between input voltage and what the pot does is very interesting. I put a heatsink on the transistor and have tried input voltages up to 5 v but it seems to work "better" at much lower voltages. Depending of course on your definition of "better". I put a switch in series with the base connection to make it easy to "unplug" the base but I have not seen any oscillations continuing after base is disconnected. Yet.

Offline tinman

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Re: N.R.M.R.E. An investigation.
« Reply #73 on: April 20, 2017, 12:41:07 PM »
First light.

Well, it makes one hell of a Joule Thief, I'll say that much for it. 2.1 volts and about 210 mA input, lights up a NE-2 neon brilliantly. One "typical" Collector trace shown on the scopeshot. Adjusting the pot causes some radical changes. Still exploring.

TK
The ringing amplitude seems to be increasing,before your transistor switches on again.
Is this correct?.


Brad

Free Energy | searching for free energy and discussing free energy


Offline TinselKoala

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Re: N.R.M.R.E. An investigation.
« Reply #74 on: April 20, 2017, 02:08:06 PM »
TK
The ringing amplitude seems to be increasing,before your transistor switches on again.
Is this correct?.


Brad

Yes, that is correct. And if that's what one wants to emphasize, one can fiddle with input voltage and pot setting to get this effect to show up more strongly than in the scopeshot above.

Free Energy | searching for free energy and discussing free energy

Re: N.R.M.R.E. An investigation.
« Reply #74 on: April 20, 2017, 02:08:06 PM »

 

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