Testing the TK Tar Baby

[TinselKoala]

All I can find in the first video about heating the Ainslie load is the statement of "6 or 5 Watts" and the apparent citation of a load equilibrium temperature of 51 degrees or so. Without knowing the intimate details of the load's environment this is of course meaningless and useless.

When I tell you that Tar Baby's load is immersed in 250 ml of mineral oil, and I give a time-temperature curve while it's handling current, and a decreasing time-temperature curve when it's not, then you may calculate away and tell precisely how much power Tar Baby's load is dissipating from the equilibrium temperature reached. And you have some chance of being able to repeat the conditions and the measurements for yourselves.

If somebody shows you a coffee pot with a water heater element dangling into it, and a meter that reads 51.1 degrees.... all you know OR CAN KNOW is that the meter reads 51.1 degrees. Other than that, they might as well be making oxtail soup.

Presumably, allegedly, the heat load was calibrated by fiddling around with a DC power supply somehow and heating up the water under the same conditions with DC power, and then the figure of 6 or 5 watts was calculated. I am afraid I have no confidence in the ability of the NERDs to carry out such a complex and "fraught" calibration procedure. But nevertheless I am willing to accept their 6 watts figure... as it supports my case entirely.


Notice the common OU effect: when the effect is first announced it is so powerful that it will boil water, melt lead, vaporise solder, make oxtail soup for an army of RATs.... but when measurements become more precise and harder to ignore, the power levels inevitably decrease, just   like    a       battery         running                out                 of             ju

[TinselKoala]

OK, now let's look at this.

I've been running since early this morning on the IRFPG50 mosfets, making the oscillations, no LEDs anywhere in the circuit. So it would take a Chief Inspector Clouseau to determine just where the NERD RATs device is different than mine... but I am assured by the NERDs that Tar Baby is NOT an Ainslie replication.
(Probably for the same reason my Mylow replication wasn't a Mylow replication: it didn't supply free energy. But that's neither here nor there.)

My load is still sitting at 110 F, my inline ammeter indicating 100 mA, my batteries indicating 37.6 volts under the load of driving the circuit. Even with 5 A-H batteries and no recharging this could go on for a while.



If their load was dissipating 5 watts, and that means a current of 700 mA, then if I set TarBaby to produce a drain of 700 mA on the inline meter, and monitor load temperature, what will happen?

And what will it mean? Tar Baby's load is pretty well insulated, unlike hers, and we are also using mineral oil, which has a specific heat of 1.67 as contrasted with water's 4.18. Will Tar Baby be able to reach the lofty equilibrium temperature of 51.1 degrees C? Will Tar Baby melt into a puddle of asphalt, tar, plastic and blackened mosfet bits? Stay tuned to this channel, we'll be back after Your Local News and Weather Together, with traffic reports from outer space.

[TinselKoala]

My load's now at over 140 F and still climbing, mosfet temps have finally stabilized so I don't have to keep tweaking the drive to keep drain current from going over 800 mA... right now it's at 670 mA....

I mean, if they can get all excited about mere load temperatures, they should really be worried, right about now. My batteries are still at over 12 volts eeeee -ach!

(Q1 runs hot under this condition, so, because I don't have any spare PG50s, I decided to put a small fan directed at its heatsink to try to keep it cool. Probably  not necessary but I'm a belt and suspenders kind of Fuhrer, er, fellow.)

[TinselKoala]

Here's another thing I don't quite understand (although I have my "theories".)

The NERD RATs device has massive heatsinks on all the Q2 mosfets and the Q1 mosfet isn't heat sunk at all, really. And the circuit and the analyses and the sims and my experience live on camera have all indicated that the Q2 mosfets are the only ones oscillating, usually, not really switching,  and the Q1 mosfet isn't working at all, and as I have shown it may even be removed entirely without affecting the "known" parameters of the measurements. And when I set Tar Baby to a current of 700 mA, this is done by allowing Q1 to turn on, and it gets hot.

So why the evidence for hot Q2 mosfets in the NERD device? My Q2s hardly get warm at all , unless I force them to turn on fully and carry a lot of current. And at the same time make Q1 stay off or maybe just oscillating.... hmmmmmmmmm........ exceedingly strange.

(ETA: Load temp at 160 F and slowly rising, drain current 700 mA, batt voltage 36.7, Q1 hot and fan-cooled, Q2s barely warm.)

[MileHigh]

Groundloop:

Your first statement in your last posing is correct.  Your quote is correct.  But most of what you stated in your previous posting was incorrect.  Feel free to start a thread about that if you want, TK is back in replication mode.

My final comment would be connecting two caps together compared to an LC circuit is like comparing apples and oranges.  So naturally there will be differences.  The intention for me was to explain how the energy "disappears" when you connect two capacitors together.  It's an "inelastic collision" between two capacitors "moving" at different voltages.

Back to that old RAT magic....

MileHigh