Testing the TK Tar Baby

[TinselKoala]

if you look at the foundation of your sciences you will find tautology there as well... they just call them axioms.

Ah... the Witless for the Prosecution stirs from under his bridge. 

What do you call a Watt, and what do you call a Joule, WontbeSober? In the interests of legal discovery, of course.

And perhaps you'd like to give an example of a foundational axiom of my sciences where a tautology is found. I'm not saying there aren't any... I'm just saying that, as usual, your posts are contentless and insignificant.

[poynt99]

Regarding the two bias conditions and the resulting circuit currents, I hope the attached drawing answers most if not all questions.

Neither case shown was with oscillation present.

[WilbyInebriated]

Ah... the Witless for the Prosecution stirs from under his bridge. 

ahh the usual logical fallacy... ad hominem. imagine that!

What do you call a Watt, and what do you call a Joule, WontbeSober? In the interests of legal discovery, of course.

how does this address my words that you quoted? it does not. thus, another logical fallacy; red herring.

And perhaps you'd like to give an example of a foundational axiom of my sciences where a tautology is found. I'm not saying there aren't any... I'm just saying that, as usual, your posts are contentless and insignificant.

perhaps you would like to refute me? go ahead and PROVE me wrong... by demonstrating that not a single one of the axioms that are the foundations of your sciences are tautologous your opinion is noted and duly round-filed. and again, tu stultus es!

[MileHigh]

Poynt:

Thanks for the sims.  You can see how for the positive bias mode that the zener diode in Q2 is doing a very decent job of clamping the Vgs of Q1.  That might be another mystery because haven't we seen NERD captures with Vgs of Q1 a full 10 volts?  That's something worth checking on the bench to see how the real parts work.

You can see the potential to prevent Q1 from switching on fully, keeping it in the linear region and acting like a resistor.  Ouch.

It's worth mentioning that any extra currents loops represent power supplied by the function generator being burned off as heat inside the MOSFET(s).  Not very elegant.

MileHigh

[TinselKoala]

Regarding the two bias conditions and the resulting circuit currents, I hope the attached drawing answers most if not all questions.

Neither case shown was with oscillation present.

Thanks.. I understand the second case  after yesterday's experimentation I think.
But why weren't there oscillations present in your first case?  Isn't that, except for the missing Moses mosfet, the same as the "negative gate bias" oscillation mode?

Is the Q1 mosfet (Moses) really irrelevant, as I have been thinking, in your first mode? Does its internal capacitances and Zener have any role in allowing or making or participating, whatever... _relating to_ ... the oscillations?

Would it be of benefit to trace those current paths out on an approved Ainslie schematic? I mean, I know and you know the topologies are the same, but it might be easier to see if they were given on one of the diagrams from the NERDs themselves.