Tubes?

[z_p_e]

Your wave form looks interesting Marco.

Would be nice to see a drawing of your hookup though

Is it anything like my simulation diagram below? (ignore the fact it was a sim, just wondering about the connections).

How I understand it is that you have run the 500-0-500 outputs through a diode (or two) first, then fed the 5UGB valve diodes, is that correct? On my diagram, there would be a diode in series with Rs1 and Rs2, as I only see 2 diodes in your photo.

Below I show two forms, one using a center-tapped filament transformer, and one with no center-tap.

Hmm, I wonder why your wave form does not look rectified? What voltage are you running your generators at? Perhaps the tube diodes are not really conducting, and hence not rectifying? There are no voltage indications on your scope shot, so it's difficult to deduce any further.

Where did you measure that wave form?

Cheers,
Darren

[wattsup]

@marco

I can't remember where I read this but I can remember it saying something like " one of the great things about a vacuum tube is that the gate voltage can be recycled". So the question is, what if you concentrated on looping the input voltage so that it can be re-used in a loop thus producing more high voltage than is being consumed. That's where the OU is. If you consumed less power to run the tube then the power the tube produces.

[turbo]

Darren, the tube is conducting it is getting verry hot too i almost burned myself.
if it ain't the voltage it's the heat 
i did not know they would become that warm.

First i set the frequency then i adjust the voltage to what it should be on both channels.
the small sine looking wave represents the rectified but not smoothed out 500VDC.
i do not use chokes and capacitors so it it not a straight DC and i have placed a rather large resistor in between my digital scope to protect it as i do not want to destroy it.
the scope cannot handle the direct power and i was trying to solve this by stepping it down again thrue another transformer which was a stupid thing because of the DC,i wasn't thinking.
you image does show the setup exept for the diodes.

about the measuring points, Steven talked about the output of the tube and about the heater transformer, so i measure between the zero line of the plate transformer and one of the heater connections.
i am going to do more measurements on the heater transformer itself.

it does take some time to perform all these measurements and i need to write down what i am doing.

it's a fairly simple experiment ,i believe about anyone can do it taking saftey for the HV in account.

@wattsup,

thanks for the tip i will try some feedback as the experiments continue.

[Super God]

Yeah, that experiment he described confused me because I did not know what he meant by connecting two transformers in reverse of one another.  I'm going to study your picture then, I guess.

I wonder if ol' SM still reads this board?  I bet he would be thinking "Thank God someone actually did what I told them to do!!"  Heh

[turbo]

hey we don't give up that easy 
it's a bit frustrating realizing all this natural power is lost isn't it?
combine that with the growing need of clean energy and i don't think there is much to choose.
i am doing this because i love every living creature on this planet aswell as for mother earth itself 
and because i had a ham radio dad i was born and raized between wires
so there is some desire to understand electronics in my blood aswell.

Now i am off to recharge my batteries for the next series experiments.
the mosfet bridge which feeds the transformers clips off meaning there is not enough power...which is normal since yesterday i could bake an egg on it.

Marco.