another small breakthrough on our NERD technology.

[TinselKoala]

@picowatt:

Rosemary said,

And the beauty of that little LeCroy is that there is no way it can do anything other than reflect the actual waveforms.  Well within it's competence.

Do you agree that that little LeCroy will always tell you the absolute truth?

Here's a little demo that I did some time ago, showing that getting the "absolute truth" from a scope ... depends on asking the correct questions.

http://www.youtube.com/watch?v=KWDfrzBIxoQ

[picowatt]

MH,

I thought the issue regarding the FG ground connection to the Batt- instaed of Rshunt was known for some time.  I'll have to look at the scope shots, but keep in mind that while the DC bias current for Q2-Q5 does bypass Rhunt, for AC, the reactance of the Ciss for all 5 MOSFETs is a more robust path than the 50R of the gen.

So I do agree that a couple hundred milliamps more or less does bypass the shunt at DC, but when the circuit is oscillating, the error is reduced due a bit due to the Ciss reactance of the MOSFETs and the bulk of the AC current would pass thru the Ciss path.

At this time, however, I am attepting to understand what is going on with the simplest and most basic part of the circuit, Q1.  Why does it not appear to be turning on when the gate voltage is more than sufficiently positive to do so?  Can you tell where the FG output is connected?  Is it possible it is not connected as shown in the schematic?

PW 

[picowatt]

@ALL,

Need to clean my "M" key...

PW

[TinselKoala]

And yes you did too apologise to me about the inverted duty cycle of your first fiasco circuit, and fuzzy has reproduced that apology earlier in the thread. Of course you took back the apology later... but I'm still right.

And you admitted just recently that you were wrong about:

the 25.6 million Joule calculation
the provenance of the video
my annotated versions of your scope traces

but yes, you did NOT apologise for the pages and pages of abuse and denial that happened before you finally couldn't possibly deny reality any more.

And you are currently wrong about many other claims and statements you've made, too.... and I'm still right.

[Rosemary Ainslie]

Guys - yet another miracle of misinformation.  These abound in ALL TK's videos.

@picowatt:

Rosemary said,
Do you agree that that little LeCroy will always tell you the absolute truth?

Here's a little demo that I did some time ago, showing that getting the "absolute truth" from a scope ... depends on asking the correct questions.

http://www.youtube.com/watch?v=KWDfrzBIxoQ

Look really CLOSELY at where he changes that probe position.  He is no longer even on the same RAIL.  He goes to an ENTIRELY difference position BEHIND a junction.  And then he continues to do what he does best.  Which is INSINUATE.  And here's what's particularly DISGUSTING is that he's insinuating that the measuring instrument itself is WRONG. 

We've all wised up to your tactics TK.  Long back.

Rosie Posie