Back to Basics

[Grumpy]

If you are smoking your transistors or MOSFETs try to figure out why this is occuring.  Internal heating from excessive current or switching speed can quickly burn out these components and this is more likely than some mysterious "movement in the force".

A little ringing back and forth through a transistor or MOSFET and a small amount of current become a big problem.

[darkspeed]

Smoke one of these instead.

G-811 Triode

1250v standard or 5000v military up to 110mhz

http://kb2ljj.serveftp.com/Tubes/Russian%20tubes/G-811.PDF

[BEP]

Please forgive me but I can't imagine any reason why SM would put a switching or rectification device in-line with the load. It isn't needed.

With the vorticity created the output is DC anyway.

I understand 'controls' as controls not output. On any common device which has an output the controls are not part of the output. At least, when the controls include active devices.

As far as chokes go.... not one of the pictures of chokes looks like the control toroid in the SM videos.

They are round - wire wrapped round them - insulating divider in the middle.... that is about as close as they come.

[BEP]

I will correct my earlier statement about active devices.

Yes, active devices are commonly on outputs. In every case I can think of it could be done with fewer components without them. Case in point: Switching power supplies...

Now there is engineering bloat if ever I saw it.
They control/convert an external source. I just don't see it that way for a TPU.

I see the controls as initial excitation(possibly) but mainly to enforce limits and create the repeating stoppage so there is a difference of potential to be used.

[EMdevices]

Can I convince you of something?

Think about it,  if the FTPU had any switching in it and presumably a battery, it is worth nothing as he does not light a light bulb with it, all he does is show us the voltage.  That's not very interesting if there is a battery, but if there is nothing to power it, then it truly becomes something interesting, and that's why he is showing us the video.  Think strong magnetic fields and tuned loops of wire and capacitors and maybe a magnitostrictive wire (bailing wire) for added Q.

However, the reason he does show us the video is because he is able to TUNE INTO THE EARTH MAGNETIC FIELD and produce a voltage.   This means passive components only.

Now,  his later devices could very well be a combination of two things:
1)  tuned coils to the magnetic field,
2)  a DC to DC converter

If that is the case, then we can talk about switching transistors etc..  The Dr. Swinsinger report indicated the output voltage was well regulated, and this means a well designed regulated power supply integrated with the tuned loop antenna.   OR,  we are really dealing with a ROTATION phenomena that somehow produces DC,  However, in one of the videos, SM says his output is high frequency, and doesn't mention DC at all.  So it is possible he experimented with a number of circuit topologies.   He used the raw high frequency voltage, or he filtered it and rectified it and then regulated it to a steady DC voltage  (which might still have a small ripple frequency on top of the DC)

@wattsup,   the reason the mosfets and transistors blow when you reach resonance is because the impedance drops  due to the reactive impedances canceling out, which means current increases drastically and this overheats the transistors. (assuming a low load resistance) There's special design techniques for resonance and current limiting etc..    Good point about SM making up stories....

EM

P.S.  Maybe these images help somebody, they sure helped me.