Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

.

[Grumage]

Dear verpies.

Many thanks for your recent comments.

Could I make a HF current measuring device in the following manner. Ferrite ring wound with say 10 turns of manet wire. Output from coil connected to 4 X 1N4148 in FWBR format and a small cap to smooth the output? Then by passing the single current conductor through like a CT, calibrate at 50 HZ?

Cheers Grum.

[verpies]

Could I make a HF current measuring device in the following manner. Ferrite ring wound with say 10 turns of magnet wire. Output from coil connected to 4 X 1N4148 in FWBR format and a small cap to smooth the output? Then by passing the single current conductor through like a CT, calibrate at 50 HZ?

Such device would not convert average current to voltage across the capacitor. It would convert the maximum current to voltage, essentially functioning like a "peak detector".

[Grumage]

Dear Nick.

Please find attached below a modified schematic of the drive circuit. This is the one I am currently using for my tests.

I should think you could build this fairly cheaply. Mine is on a breadboard but I have plans to put it on Verro board soon.

Please note that the fast diodes and base bias resistors should be placed as close to the transistor as possible. Just like you see on your enhanced photo that you posted recently.

Cheers Grum.

[Grumage]

Dear Hoppy, Verpies and all.

I have attached again, sorry for the repetition!! One of Nick's closeups of the power transistors. Now I still cannot fathom some of the array of components. I can see a pair of back to back Zener diodes across Gate to Collector. I can also see steering/anti ring diode across Emitter Collector junction. The part I can't understand is the parallel resistor diode and two capacitor array. They just seem to me to be soldered to the one leg of the Emitter. Any thoughts?

I have placed my Gate bias and parallel diode right on my IGBT. The photo seems to show no Gate bias resistor local to the transistor. Could you or anyone draw a simple schemea of what you see?

Also for the record. Initially I did not place a filter in the Pos feed to my center tap of the primary transformer. But what a difference when I finally DID put one there!! Much cleaner signals recievd on the oscilloscope!!

Now for Hoppy "The Eagle eye" I have watched this video several times.........http://www.youtube.com/watch?v=7C4yEAm2ue4

Two questions? Do you see at all the 25 turn secondary winding on the Yoke transformer? I dont!! And do you see any sign of "Skull duggery"? I dont?

Cheers to all, Grum.