Testing the TK Tar Baby

[poynt99]

I did the average of what you had selected for all data points.

Average power = -110.56W

This is over 4 complete cycles. Usually, its good to do at least 10 cycles, but I think we see a trend here.

[TinselKoala]

You know that the rationalization and justification and name calling and aspersion-casting against me, my methodology, and my equipment is all about to begin, don't you?

That's one reason why I drew the process out in such detail. I don't think there is any room in what I've shown for mysterious manipulations or faked data. I've given enough excruciating detail at every stage of the process that even an intelligent eighth-grader (who paid attention in math class) could reproduce it for herself, given a good oscilloscope and a handful of magic mosfets.


Speaking of which..... there are the IRF830s yet to try. Any bets as to the "OU" outcome using those much less magic mosfets?

[poynt99]

Ah, I thought you were using the 830's. 

Well with the 830's, I suspect all will be very similar, except your Fo will go up between 2x to 4x.

Re. Rosemary, I think she's busy getting her tests together. Don't be surprised if you see a continuous oscillation version with a floating V_GS bias. 

[hartiberlin]

Quantitative scoposcopy and Tar Baby's Bias Current

http://www.youtube.com/watch?v=OV0Qvzumhhk

Ahhh the current flows the opposite direction of what I thought it would flow alike...


Okay, I see, the DC current flow through the 10.3 Ohm resistor is from the main battery through Q2 back to the main battery ground.....
I thought this current would come from the 9 Volts battery, but this is not the case...!

Then just try to put a 100 nF cap in series, so it blocks the DC current and will only pass the AC.
ripple.
The 9 Volts battery should then not be discharged so fast...

Will it then still oscillate ?

The other new postings I have to catch up next week.

Regards; Stefan.

[TinselKoala]

Ah, I thought you were using the 830's. 

Well with the 830's, I suspect all will be very similar, except your Fo will go up between 2x to 4x.

Re. Rosemary, I think she's busy getting her tests together. Don't be surprised if you see a continuous oscillation version with a floating V_GS bias. 

No... what would have been the point of that? Another "surprise"? I haven't used the 830as since that video. I want it to be impossible for anyone to deny that Tar Baby  is similar to NERD in all significant respects. I am even prepared to mount it on a piece of white pegboard if necessary. I draw the line at the clipleads to connect the mosfets, though.

Actually that _would_ surprise me very much. I still don't think she'll be showing any tests. Remember her conditions? She has to get two "academics" to agree to referee, and she won't be accepting anyone who hasn't read and in some sense agreed with her "papers". Do you know anyone with the requisite electronics knowledge who might fit into those categories? If they disagree with her they are incompetent idiots. We've seen that response from her how many times now?
In other words, not until a blue moon falls on the twelfth of Never will we see real tests from the poser.