PhysicsProf Steven E. Jones circuit shows 8x overunity ?

[xee2]

Another long running circuit:


This circuit uses a transformer that is much easier to make and runs for about 1.5 hours from a 10,000 uF capacitor charged to 1.36 volts 
>>> http://www.youtube.com/watch?v=8T9HQkDnIuU.
When the difference in battery voltage (1.36 volts vs 9 volts) is considered this circuit seems to be much more efficient.

[Pirate88179]

Another long running circuit:


This circuit uses a transformer that is much easier to make and runs for about 1.5 hours from a 10,000 uF capacitor charged to 1.36 volts 
>>> http://www.youtube.com/watch?v=8T9HQkDnIuU.
When the difference in battery voltage (1.36 volts vs 9 volts) is considered this circuit seems to be much more efficient.

XEE2:

I totally agree with you.  Very nice circuit.

Bill

[MileHigh]

I can imagine a home lighting project.  A solution for the post-apocalypse.  lol

You have a solar panel and you look around for the best possible bang for your buck for supercapacitors.  You fill a big 40-gallon plastic storage bin with supercapacitors and wire it up to your solar panel.  You run a small mirocontroller and associated circuitry to keep the supercapacior bank topped off.  Then you have a "charging station" which is a 555 with a transistor/inductor/diode to pulse current into a device to charge.  You could charge your cell phone with it as an example.

The key thing here is that the microcontroller and the 555 themselves run off of low-leakage coke-can-sized capacitors also.  Assume the "power supply" caps only have to be topped up once every two weeks.  That way you are not dependent on batteries at all.

So now that you have your big capacitor bank and your charging station, you can make gadgets to charge.  The first two that come to mind are a big JT design with a coke-can sized cap and big LEDs to make a true reading lamp that lasts at least an hour between fill-ups.  The other would be a gutted real LED light bulb with a big cap as a table lamp.

You could even run the charging station with a microcontroller or use an op-amp to give the 555 simple brains.  You select the charging voltage with a rotary switch and then connect up your capacitor-based device. The microcontroller controls the inductive pulsing charging to stop at the selected voltage.

The implicit suggestion is to think big with your JTs and make them into "capacitor appliances" that are simple, modular, and functional.

MileHigh

[MarkE]

Another long running circuit:


This circuit uses a transformer that is much easier to make and runs for about 1.5 hours from a 10,000 uF capacitor charged to 1.36 volts 
>>> http://www.youtube.com/watch?v=8T9HQkDnIuU.
When the difference in battery voltage (1.36 volts vs 9 volts) is considered this circuit seems to be much more efficient.

That's a great run time.  84 min ~5000S @ 18Hz ~90,000 cycles.   The base speedup capacitor loses 0.1uF * 2 * Vsupply - Vce - 2 * Vbe each cycle.  If the transistor is saturating, as it should, then roughly 2*(Vsupply - Vbe) or almost 1V * 0.1uF * 18Hz = 1.8uA is going into the base drive when you start.  That's most of the measured power. You might t try reducing the size of the 0.1uF capacitor to the point that it just saturates the MPSA06 when the supply is close to 0.6V.

[Farmhand]

Yeah sounds good MileHigh, problem is post apocalypse if other people see a set of solar panels on your roof it could mean death for you, without law people will revert to survival of the fittest, the coldest of heart and the smartest. Anything that you have that will improve the lot of others is fair game to stand over merchants and just plain psychopaths. If the wrong people found out that certain individuals had knowledge to produce electric power and so forth then they could force them to build things with the threat of violence to them or family.

When the law disappears then people would be better served not to display what they have that others don't. Brag and get raided.

I have no wish to enter a fire fight over solar panels or a wind turbine for that matter, but many would, even if just to control them. It is the way of people.

Post apocalypse if it happens I'll be using darkness as a friend. Wear a patch on one eye for some time and then use it to see in the dark. 

Post apocalypse if chaos reigns the biggest problem long term will be all the nuclear reactors and associated equipment being abandoned, not to mention all the other dangerous and polluting stuff that will be just walked away from if it becomes too dangerous to travel an leave the family. If that happened I foresee real problems for almost everyone on the planet. With little to lose killing other people will become necessary to continued survival.

First is food/water then is shelter in a safe place, then is health medicine, when all that is in order then people can think about luxuries like electric lights. 

The LED's and even the light globes will only last so long. How can the average camper produce an LED or a light globe at home, even if the use a very simple form of wind or water wheel generator, how to produce cheap light with no lamps LED's or anything.

Our small town was completely isolated due to flooding a couple of years back and the supermarket was practically empty in 24 hours once the situation was known. The com lines were broken and the phone towers out of action, we even ran out of money and the ability to access our banked money. Luckily the situation did not last long. If the supply lines are cut for long term then people have to be responsible for everything. Without outside assistance flying in bread and milk and police the crime rate would have went through the roof.

Cheers