Testing the TK Tar Baby

[TinselKoala]

Might as well post these shots then too, if we are talking about "out of phase" signals.

[TinselKoala]

She has never even admitted that THIS is wrong, either.

Bubba you're getting tedious in the extreme.  Correctly it is one Joule per second - but since 1 watt = 1 Joule and since 1 Joule = 1 watt per second - then AS I'VE EXPLAINED EARLIER - the terms are INTERCHANGEABLE.  Which is ALSO explained in WIKI.  Much more important is that you answer your earlier concern that a battery can deliver a negative current flow - which seems to be something you really CAN endorse.  Somehow?

I'm not going to answer any more of your posts Bubba.  They're getting too tedious.  And they've got absolutely NOTHING to do with the topic.

Rosemary

So one mile is the same as one mile per hour, the terms are interchangeable. And thirty students per class is the same as thirty classes per student, the terms are INTERCHANGEABLE. AS I'VE EXPLAINED EARLIER.
Do the math.

But of course.... the definitions of units of Power and Energy and their relationship have got absolutely NOTHING to do with the topic of testing RA's overunity power claim.

[TinselKoala]

Take a look at the blue, Gate drive trace in that last shot. Doesn't that look weird, to be coming from a FG set to make a square pulse?
What's going on here?
Also note that this is one shot where the battery voltage was indeed 72 volts nominal.

[picowatt]

Take a look at the blue, Gate drive trace in that last shot. Doesn't that look weird, to be coming from a FG set to make a square pulse?
What's going on here?
Also note that this is one shot where the battery voltage was indeed 72 volts nominal.

TK,

The CH3 trace is one of the questions I have about FIG4.  The basic shape of the indicated signal makes sense.  The negative going portion, that ends in a negative peak, is likely the Ciss being charged via Rgen and at the negative peak, Q2 is turning on.  This time point (the neg peak) coincides with the gitch seen in the CH1 trace on its rising edge just past the gnd ref line.  As Q2 turns on, current pulled thru Rgen causes the source of Q2 to be pulled positive, and this would be the positive going portion of the CH 3 trace as it rises from the negative peak.  From that point, there are at least three events that happen related Q2 turn off, Ciss/Coss discharge, inductive collapse, and possible clamping or switching by body diodes that I have not yet fully "deciphered".

Looking at FIG 5 in the first paper, the AC signal on the CH3 trace, during the oscillation phase, is offset more negative than is indicated during a similar time in FIG4 (or its mate FIG3).  This could be an indication that when the FIG5 trace was made, the FG common was connected at the non-battery side of the CSR. and that possibly the FIG4 trace was with the FG common to the battery side of the CSR (as video evidence supports).

If, as the text states for FIG3 and FIG4, the FG was at full negative offset, there may have been sufficient DC current flowing through the CSR to raise the voltage at the non-battery end of the CSR slightly positive and account for the differences in offset observed between FIG4 and FIG5 regarding the CH3 traces during oscillation.

Keep in mind that FIG3 (and hence FIG4) indicates an issue regarding Q1 as well, so some of the differences may thereto be related.  But more likely it is with regard to the FG common connection point.

What does does the signal look like at the source of Q2 in your circuit during oscillation?

If your Q2 source signal is much more negative than as indicated by FIG5, possibly you are having to bias on harder to get a similar oscillation.  More length on the battery wire (or somewhere) might add sufficient inductance to allow you to get large oscillations at lower Ibias.

In order to replicate all the nuances of the AC indicated on the CH3 trace, I have also always suggested a 50R bias source.

PW

[picowatt]

TK,

You would have liked my old Dobs.  It collapsed down to a unit I could backpack into just about anywhere.  Took about 20-30 minutes to set up and collimate.  I used it a lot in the mountains of N. Georgia, E. Tennessee, western N. Carolina, Alabama (look on a light pollution map, you'll see where I took it!).  I also set it up in Wyoming, Montana, Idaho, Washington and one trip to Colorado.

Being able to take a 12" to where there was no light pollution was a lot of fun.  But then, I was "just looking", nothing serious, just enjoying the wonderment.

PW