Graham Gunderson's Energy conference presentation Most impressive and mysterious

[TinselKoala]

Meanwhile, thanks to K4zep for the oscillator details, here's the revised/corrected wiring for U7, the 74HC123 monostable multivibrator configured as the master oscillator for the Gunderson breadboard "Simplified Presentation Logic Wiring" diagram that Spokane1 drew out for us.

When I first built it according to Spokane1's diagram I had to feed it with an external clock signal to get the system to make pulses, and one of the pots on U7 didn't have any effect. Using this revised wiring it is now self-contained, with the frequency and duty cycle pots both working and the ranges indicated on the drawing. I've put in the actual values of the timing components I wound up using to get the ranges shown.

[Vortex1]

And how many "successful replications" have been performed according to information in that book? How many people are running their homes from it, or have applied for and received any of the many OU prizes that are out there? After all, the book is old news.

I agree with your sentiments, and it makes me wonder about the current interest in the latest G.G.offering, considering past performance and affiliations. My post was not an endorsement,  rather, it was posted for  "informational purposes". Everyone should draw their own conclusions based on careful reading of the advert style and affiliations.

I might add that you fellows are doing a very good job at back engineering the circuitry. Whether a very accurate timing diagram can be derived from this is YTBD.

[poynt99]

No. The peculiar characteristics of the H-bridge and the Synchronous Rectifier are critical components of the "OU" system and the power supplied _to_ these components is part of the input to the device.  The device would not work without these subsystems with their particular details, and their tuning is critical to the operation.

Well, I'm only referring to Input power, not output. So the synchronous diode is of no relevance in that regard.

Does "DC" not qualify as "peculiar" in your world? I would think it does, if indeed GG's H-Bridge output does as well. Or, we could just as easily say there is nothing particularly "special" about either one. My Big Muff Pi pedal won't work without its 9V power supply connected either. Does that make the power supply "special"? I think not.

Ultimately, both supply voltage and current to whatever device we connect to them, and as such, they are simply just power sources. Granted in GG's case the power source's wave form is sync'd to the device, but that is the only difference. It is still just acting as the input power source.

[Dog-One]

With a DC power source, I would think the internal resistance would be critical, since it is this resistance that determines the maximum rate of current flow at switch closure, which defines the current ramp--timing.


I also recall not being able to get Bill Alek to show input power to his amplifier that was driving his Split Flux Transformer.  I got in Hillary fashion, "What's the difference?" response.  For those that never played with this SFT arrangement, using a standard transformer output PA amplifier reveals normal operation, but when used with a low voltage capacitive-coupled car audio amplifier, you see something quite different, right up until you measure the input power to the amplifier.

[k4zep]

Meanwhile, thanks to K4zep for the oscillator details, here's the revised/corrected wiring for U7, the 74HC123 monostable multivibrator configured as the master oscillator for the Gunderson breadboard "Simplified Presentation Logic Wiring" diagram that Spokane1 drew out for us.

When I first built it according to Spokane1's diagram I had to feed it with an external clock signal to get the system to make pulses, and one of the pots on U7 didn't have any effect. Using this revised wiring it is now self-contained, with the frequency and duty cycle pots both working and the ranges indicated on the drawing. I've put in the actual values of the timing components I wound up using to get the ranges shown.

Thanks TK for the total schematic!

Ben K4ZEP