PhysicsProf Steven E. Jones circuit shows 8x overunity ?

[profitis]

Coming close to steorn orbo secrets here.

[MarkE]

Coming close to steorn orbo secrets here.

LOL!  Do you mean that Steorn were consummate liars and incompetent at science?  Sean McCarthy's appearance and sound drubbing at UCD is a classic.  But what s a bit of terminal embarrassment when you get to spend your way through 20 million euros or so of investor money producing nothing?

[JouleSeeker]

Meanwhile my experiments with magnetic clamping continue.

https://www.youtube.com/watch?v=eV9WsZmJ7w8&feature=youtu.be

Video taped today (July 14 not 16 oops), a few more interesting experiments.

From my caption:

Published on Jul 14, 2014

Continuation of my magnetic-clamping experiments. As before, I use the ferrite C + I core, with a coil of 18 AWG speaker wire (50 feet long) on the C portion.

Power input from a 1000uF capacitor (this is new). We calculate the input energy using Ein = 1/2 C V^2. The input voltage is about 5 volts, so available in the cap is Eavail = 1/2 (1000 uF) (5V)^2 = 12.5 mJ.

This is the power delivered if Vfinal = 0 on the cap; but this is generally not the case as I quickly tap the yellow lead from the coil to the (+) leg of the cap.

Test 1: Cap goes from 5V to 2.7V, and clamping does occur.
Energy input from the cap: 1/2 1000uF (5^2 - 2.7^2) = 8.9mJ
(Not 2 mJ, but as I noted I had seen clamping with 2mJ input before with earlier testing.)

Test 2: Cap goes from 5V to NEG 0.7V. Negative voltages on cap are often seen with testing as shown, quick tap to the coil from the cap leg. The negative voltage on the cap presumably stems from flyback from the coil.

In Test 2, the input energy from the cap is 1/2 1000uF (5^2 - (-0.6)^2) = 0.5mF (24.6) = 12.3 mJ.
By applying a negative voltage on the coil (that is, current in the opposite direction), de-clamping may occur.

PS -- if I hold the yellow lead on the (+) leg of the cap at 5V, instead of quick-tapping, the cap quickly drains to 0V, but clamping does not occur. The quick-tapping is important for some reason - and often results in a negative voltage on the cap (due to flyback from the coil no doubt).

With a negative voltage of about -1V or so, I get de-clamping (when the coil is energized with a quick tap from the cap, as shown).

[MarkE]

Why don't you use a pair of diodes?  Charge the capacitor, disconnect the supply, then connect the coil to the capacitor through a series diode with a flyback diode across the coil?  No flicking will be necessary.

I am not sure what it is that you find unusual about any of this.  People have made keepers with lapped surfaces for many years.

[synchro1]

@Jouleseeker,


The de-clamping from negative voltage in your video is awesome! I've been waiting for impulse magnetization tests from the biflar. I succeeded in replicating the bifilar nail experiment that "Tesla-Coil-builder" designed  and I'm completely impressed by your measurements . This adds up to overunity, if the two thousand joules stored in the magnetic field can be recovered  as flyback when the field collapses.