[NewCandle] SEC - Strategic Erg Command

[Nick Reiter]

Good morning, all,

Well, things are moving ahead a bit.

This week, I was able to get a "Thomas" oscillator
running, using a variable DC supply instead of a
battery pack.  This appears to be one of Dr.
Stiffler's selected "drivers", so ok, we are there. 
It's a zoot little circuit - feisty.  Not sure of the
final frequency, as my scope doesn't read high end all
that well, but I'm guessing its above 5MHz.

Anyway, by bumping the supply voltage up a bit over
the prescribed 12V, I could get a triple bank of 58
LEDs to run at .125mA.  I found that my little 0 to
1mA D'Arsonval meter in series with the LEDs works
fine.  The RF output from the oscillator into the AV
plug looks like its somewhere around 125 to 130V.

The LED string I have consists of 20 green GaN (with
an average voltage drop of 2.6V at .125mA) 20 white GaN
(with an average voltage drop of 3.1V@ .125mA) and 18
orange GaAsPN (with an average voltage drop of 1.3V@
.125mA)

If I consider the power dissipated by each LED as
being ~ V x A, and then add all the devices together,
I come up with a total power dissipation of .0176W, or
17.6mW.  The eye wants to tell us that there is so
much more!  But eyes lie...

At a current in the AV plug string of .125mA, the
oscillator is drawing 11.51mA at 19.28V, or .222W, or
222 mW.

Thus it appears that we are at about 8% efficiency in
lighting our LEDs that way.

OK, but who cares!  lets move on!  Lets see if there
is any enhanced light output from these Irish Flag
LEDs...

I had previously used my little solar simulator
calibration cell - an Si photocell - to look at the
photocurrent generated by a single selected member of
the green LED pack, with the LED touching the cell
cover in dim room light.  I looked at the photocurrent
under the following conditions:

in a string of 4 series LEDs, at .125mA DC from a
regulated supply

in a string of 20 series LEDs, at .125mA DC from a HV
regulated supply

in the full string of 58 LEDs, at .125mA DC from a HV
regulated supply

in the full string of 58 LEDs, at .125mA from the AV
plug capacitively coupled across the desk getting
power from my little flyback oscillator (~40KHz)

In all of these cases, photocurrent from the
calibrated cell was between 15 and 18 microamps,
depending on how still I could hold the cell housing.

So with the Thomas oscillator running, I measured
photocurrent from the light conversion of my selected
LED.. and find about 18 micro-amps.  No difference.

The Si cell should have pretty decent spectral
sensitivity in the green, being used for solar
spectrum and solar cell work.

My conclusion at this point is that I'm not seeing any
compelling energy conversion or illumination
anomalies.  I do see that on the Hartmann list, the
discussion is now diversifying even more into lighting
fluorescent bulbs and looking for heat anomalies, with
styrofoam calorimetry.  eek.

I'm going to play with this some more though.  I do
like - in concept - the idea of using some RF to
"tickle" or prime some sort of avalanch effect out of
other components, like wet cells or aluminum salt
water cells hehe or other non-Euclidian doodlebugs. 
Anything in a state of oscillation is a fun time.

N

The Holy Grail 'neath ancient Roslin waits.
The blade and chalice guarding o'er Her gates. 
Adorned in the masters' loving art, She lies;
She rests at last beneath the starry skies.


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