Regardless of what anyone (paid disinformer, honest helpful experimenter, or otherwise) says to me, I'm going for the fastest rise time/fall times possible .
Saving money is always nice though, and I welcome suggestions in that regard. But from all the research and experience I have done in the past, the speed and performance of the switching and amplification circuitry is a critical variable in success of tapping anomalous electromagnetic behaviour.
The reason for this is that the sharp gradient is often necessary to modulate longitudinal waves -- also known as scalar waves. Tesla discovered these waves over 100 years ago, and I have posted experimental proof for the existence of these waves here: http://www.overunityresearch.com/index.php?topic=754.msg11722#msg11722
. I want to experiment with extreme and unusual electrodynamic conditions in order to learn more about the universe -- specifically scalar waves -- learning on an experimental workbench, not from brand new textbooks written by corrupt institutions with political and monetary agendas.
I have plenty of microcontroller experience, and have driven amplified MOSFETs in the past with crappy driver chips and got crappy results (piss-poor amplified waveforms).
I recommend anyone experimenting with square/pwm waves go for as FAST a risetime/falltime as possible, making sure to take into account propagation delay as well as MOSFET input capacitance in their frequency experiments. Phase, frequency, flux, permeability, hysteresis , inductive coupling etc are also critical factors that need to be considered. I will be building my equipment in this manner (going for the best performance for a given budget) and will be publishing all my research publicly.
Now that I've made it clear I will not be swayed from my conviction that risetime/falltimes are critical for square/pulse wave research, for I moment I would like to discuss my preliminary experiment from earlier:
JOULE THIEF RESULTS:
Resonant Frequency: approx 8kHz
Loaded LED voltage: 3-4V P-P
Unloaded Resistor Voltage: Up to 80V P-P , variable
I replicated the professors Joule Thief earlier , and I had interesting results. Replacing the LED with a 5K variable resistor resulted in a 'sweet spot' of very dynamic change , as well as significant variation of the oscillation waveform, including amplitude, shape, phase, etc. The waveform changed shape significantly on my oscilloscope, along with variations in frequency which were not as dramatic. I will publish further results once I get my digital camera back.
As others have observed, Joule Thief is a very sensitive circuit to its local environment, so waveforms changes as the circuit was moved around physically, leads were touched with the body, etc.
FUTURE FAST GRADIENT RESEARCH:
Joule Thief aside -- It is imperative for square/pwm based scalar wave research to have the fastest switching speed, risetimes/falltimes etc as possible . New experimenters -- do not let anyone tell you otherwise. Two of the authorities on this subject -- SM and Bob Boyce -- have both stated risetime/falltime is critical. You also want a crisp and clean a waveform as possible all the way up to your max VDS, with phase under complete and precise control for proper experimentation. Sloppy amplification of waves is a recipe for crappy results.
In terms of inexpensive MOSFET drivers, I am looking at the following: (I've left out other important statistics to focus on switching speed.)IXDD414
-recommended to me here on OUR by a CTO of an energy technology company
(rise time 25ns , fall time 22ns , propagation delay 30ns)FAN3228
- found these on digikey, and their specs seem to fit well with your standard IRF840, IRF820, IRF510 MOSFETS and related types.
(rise time 12ns , fall time 9ns, propegation delay 15ns)UCC27322,UCC32322
- these were used by Bob Boyce in his HEX controller unit , which was successfully used for overunity experimentation with longitudinal energy (rise time 20ns, fall time 20ns, propegation delay 25-35ns)
I have a list of datasheets I am considering, and I will be using cheap (yet fast) MOSFET drivers first as I scale up to the experimental hardware for high voltage 200V - 1000V amplified pulse wave research. I have a 1kV regulated power supply with some HV capacitors, so there should be some interesting experiments here as well.
More Joule Thief results tomorrow..