Rodin Coil Tests and Replications

[stubbs]

Very little time to play with it. I recieved the replacement components
late yesterday. I ripped everthing appart and started fresh. I will play
a bit this evening and get into good tomorrow.

As for the circuit; the only things that have really changed, is how the coils
are connected with one another, and the load.

[rave154]

stubbs,

spent all day trying to get GEM's circuit up and running using my rodin now filled with magnetite.....no joy..strange since it worked so easily last time....oh well...live and learn i guess...

i like GEM's idea of using a trigger coil thats in the "middle" of the rodin..and therefore picking up whatever it is that thr rodin is putting out...as opposed to using an "artificial" signal to pulse the rodin.

btw..yesterday i wound a new lil rodin..on a ferrite toroid that is about... 1 and 1/2 inches dia... about 6mm thick...gave it 4 wraps on a single winding..to use as a pickup in the midle of the Rodin as i pulsed the Rodin using a sig gen.....no results oh well, i guess i still get a prize for worlds smallest Rodin coil huh.

roo on tomorrow,

Ahimsa,

David. D

[stubbs]

Yes I must agree... Gems pickup coil was a brilliant idea. I believe it should be
used. The only problem I /we would have to overcome is shielding it. I have noticed
that the pickup coil can be moved away from the center and intensified.

The pickup coil seems to keep the rodin pulse in sink. It seems to keep the Coil(s) in Resonance.....

Sorry to hear thats not working out... At first it did not work for me either. Sooo I put the pickup coil
lead to +Ue, and the other over the diode to the Gate /Base. It worked, but it blew the 2N3055.
This is where I dicided to incorperate the optocopler and filter the back EMF comming off of the pickup coil.
I blew a few optcoplers as well; until I figured out the filter, and how to intensify the signal, as well snubb it.

[stubbs]

@all - I'm looking for a way to get the power output looped back into the input. I'm sure this topic has been discussed many times over on this forum, so if anyone can provide a link to a decent thread or specific post I would be most appreciative. I have had small success with reversing 120v-24v transformer, with 100ohm 10w resistor in series to line going to transformer. Without the resistor, circuit looses resonance and things tend to fry. I've noticed, if I don't have something "using" the power produced (like CFL, caps, LED strands, etc.) then the transistor gets overloaded and dies. I have also noticed that short-circuiting the output (as in connecting a normal transformer) will sometimes kill resonance, sometimes not, but does not usually seem like a good idea. I also do not like the idea of having to build a whole little sub-circuit to switch charged batteries with drained ones, etc. but if someone has something simple...

Gem,

I have a idea of how to on this... The Rodin I wound consists of a primary and
a secondary. I wound the second Rodin over the first... The secondary over a
diode bridge to a set of caps, and back on the input. The Rodin Coil
will act, as the inpedance has changed. I will try this tomorrow. It should
work???

[rave154]

stubbs,

only one way to find out ;-)

ill have another play at trying to get gems circuit working again.and if no joy...then i will assemble yours and try that.

[stubbs]

On thing I might suggest, would be placing a 100Ohm or better resistor
from the base to -Ue. This will pull the signal down a bit. I used a pot to
find the proper resistance. Good luck...

[stubbs]

I found error in the circuit. D4 is incorrect. I have corrected the circuit and
re-posted it in the original post #118.

[rave154]

Thanks for your diligence stubbs

[stubbs]

I toyed around with feeding back on the input. I got the IC bus to "zero"
But only droped a little over 100mA on my power source. I found a few other
things; but would rather share, once they work and know what is all entailed.

nite

[rave154]

Stubbs,

Again, thanks so much for your continued explorations and efforts, top marks

as to "feeding the out back to the input".....i remember reading something, in a pdf..about flux manipulation ( which is essentially a large part of what were doing here i suppose. amonst other things )... it said "one little secret regarding successful operation of such devices...is that the input and the output (load) must be connected in series"....in other words... you must not have the input "doing its thang" at the same time as the load is "doing its thang"./..you have to stagger them in a sequence...ie...

the load(cap or cap with resistive load, ie bulb) is disconnected...via mosfet / switching circuit / whatever... at the same time the input (battery etc ) fires.... then... when then input is dissconected....the load is connected to "collect" the results....in a cap....then....the load is dissconected so that the input can "fire" again....if both input and output are connected all at the same time.....all you have is one big standard transformer and.as per usual with a transformer...if you load the output then the draw on the input goes up.

i had a simple little circuit setup about 2 weeks ago, where i was using a cap charged up for my input so that i knew pretty much exactly how much energy i was using..i was also using an identical cap (plus a bulb for a load on the cap) for my output... the circuit was also using the rodin coil i might add.....in a pulsed configuration...

when i had the "Load" connected all the time.. as i connected the input..the voltage on the input cap dropped from 12.5 V....down to about 1.,2V in about 2-3 seconds... however.... when i didnt have the bulb connected...and i ran the circuit... the voltage on the inpuit cap only dropped to about 6V in a much longer time span.

remember also, we might be guilty of assuming that the Rodin coil itself....has such amazing properties that we can just take liberties in other areas and assume that because the coil is so magical it will just compensate for our sloppyness....well....i quote Marko Rodin himself where he said " the coil is only such a crude approximation of what the maths/geometry say it should be" (however, even such a crude approximation still out performs a standard coil )

im still fixated on whats going on in the centre of the coil...A) by the rapidly spinning spherical neos as demonstrated by GEM(& others)....and also.....by the readings of a clamp ammeter used by Jamie Burtoff where on a standard coil it read about 2-3 amps....where-as in the rodin coil it read about 55 amps..obviously this doesnt mean that 55 amps was flowing through the coil itself.....but it does show that the centre of the coil is an EXTREMLY active region in terms of magentic flux-change.....question......how do we "tap into" this flux change?

hope this helps and stimulates,

Ahimsa,

David. D

[sucahyo]

Sorry to hear thats not working out... At first it did not work for me either. Sooo I put the pickup coil lead to +Ue, and the other over the diode to the Gate /Base. It worked, but it blew the 2N3055. This is where I dicided to incorperate the optocopler and filter the back EMF comming off of the pickup coil.
I blew a few optcoplers as well; until I figured out the filter, and how to intensify the signal, as well snubb it.

If you blow things too often, add a load to the coil bemf, shown as battery in my suggestion. opto reduce the signal sharpness and thus reduce the effect.

[stubbs]

If you blow things too often, add a load to the coil bemf, shown as battery in my suggestion. opto reduce the signal sharpness and thus reduce the effect.

I see what you are saying. It is only another error in the circuit diagram. I
moved the positive side of the back EMF filter before the coil as it should be.
The H11D1 Opto. Transistor side reads pin 6; This should read Pin 5.

[rave154]

Stubbs, Gem & all,

been really busy at work this week, but stilll "!thinking" all the time...
going to wind another rodin coil today so that i have two and will be able to replicate stubb's setup pretty closely.

[rave154]

check out this demo of ferrofluid using a meat grinder insert...fascinating to watch the last half of video

YouTube - Ferrofluid on the track of a Meatgrinder

[rave154]

just finished winidng my second Rodin coil....13 wraps on each 2 winidngs....PHEW