--- In jlnlabs@y..., Jon Flickinger
This information is to all those presently involved in or thinking about an attempted MEG replication. I'm expressing opinions that I've come to from the results I've obtained after spending many lab hours with many variations in topology and circuitry. In no way am I de-potentializing the MEG (pun intended) but simply trying to share what I've learned about the device for the good of
IMHO, it is a waste of time to attempt power measurements of the MEG standard load resistors (that is, any linear resistive device) if one expects to see any excess energy. The output loads must be resistive (non-reactive) and nonlinear. The resistance must decrease with increasing voltage and the power must be calculated from the output voltage and current. Those of you powering
up your MEG for the first time with pure resistive loads, will find the waveforms do not match Bearden's nor JLN's! Only with nonlinear loads and a properly "tuned" MEG will you see the near half sine current waveform in your primary coils.
With nonlinear loads and a properly setup MEG, you will measure COP's >1 with the proper measurement tools and techniques. In general, the MEG seems to like voltage build up in the secondary windings before supplying current to the load!
If so, this would seem to align with Tom Bearden's public disclose of this device! The problem now lies in the utilization of this excess power to do some useful work. It would appear to me that the MEG can be run with lower secondary voltages and properly designed loads and still yield COP's >1. In fact, this should be a focal point for anyone doing this project.
1) A common nonlinear load device to try would be various voltage rated MOV's or transient absorbers.
I used Panasonic ZNR10K621U's for COP's ranging from 1.75 to 5 depending on coil turns and supply voltage. Ask JLN how he "conditioned" his carbon load resistor as I don't know. ( JLN Answer, see at : http://jnaudin.free.fr/html/negres.htm )
2) Use a higher spec'd device for Vds than the BUZ11. With only a 50 v rating for Vds, this device avalanches on the primary turn off flyback phase and results in abnormal heating. Use a device with a Vds >200 volts and an Id >4 amps.
3) The power supply can also be a constant current source and will actually provide some measure of safety if disaster strikes in the switching circuitry!
4) I can't stress strongly enough the safety issues regarding the high output voltages one will encounter on the secondaries! USE CAUTION! Be sure your measurement devices connected to any portion of the secondaries are capable of withstanding the voltages you will encounter.
5) NEVER POWER UP A MEG WITHOUT LOADS CONNECTED AS THE OPEN CIRCUIT VOLTAGES
CAN BE LETHAL AND DESTRUCTIVE!
I can now understand why the MEG presents certain problems in achieving a self-running state and it may not be necessary as Tom Bearden has recently tried to point out!
If anyone should experience valid COP's >1 with standard linear loads, please speak out!
--- End forwarded message ---
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