Selfrunning Free Energy devices up to 5 KW from Tariel Kapanadze

[Hoppy]

I strongly disagree. Radiation from a straight filament of an incandescent light bulb can be a better power indicator than the ADL5391 analog multiplier.  If the filament is coiled it will not convert the power of higher frequency components to heat, hence underestimating the true power (not overestimate it).

Are you referring to measured radiation or an assessment made by eye?

[Hoppy]

These are triacs (thyristors at best)!

Pure and applied logic: Watched very closely the visible silver part on the heat sink looks rather like a (smaller) TO-66 than a (bigger) TO-3 package when compared with the size of the screws and switches. TO-3 (although bigger) would also look more flat in overall shape than TO-66. Triacs are available in TO-66 packages (e.g. RCA 16410, RCA 40430, TAG 265). Transistors are also available in TO-66 packages. But since there was obviously a heat problem with these parts (heat sinks with fan), and TO-66 is a smaller version of the TO-3 package the use of smaller TO-66 transistors makes no sense when there are bigger (and therefore more loadable) TO-3 transistors commonly available.

That means one more puzzle piece in place.

Another puzzle piece to put in place: A triac is not the equivalent of two inverse-parallel thyristors. The gate of a thyristor has to be always positive in respect to the cathode in order to fire. The gate of a triac works in both directions.

So keep on doing this jigsaw puzzle ...

Its possible that he just happened to have that particular heat sink and device(s) available from his stock and decided to use them. Have you never used a larger or smaller heat-sink or device than really necessary because it was available to you to avoid purchase and used a fan to compensate if necessary, or simply just for good measure? Also, its possible that his heat-sink complete with mounted device(s) was recovered from equipment and just happened to suit his purpose. You may have wrongly placed a piece of your jigsaw!

[verpies]

Are you referring to measured radiation or an assessment made by eye?

The former.
Luminous Flux is significant for power measurement too, once the spectrum of the radiation emitted by the hot incandescent filament reaches the visible range. The relationship between the total power dissipated in the filament and its Luminous Flux is not linear but it is monotonic and well correlated.  See here and  here.

[Hoppy]

The former.
Luminous Flux is significant for power measurement too, once the spectrum of the radiation emitted by the hot incandescent filament reaches the visible range. The relationship between the total power dissipated in the filament and its Luminous Flux is not linear but it is monotonic and well correlated.  See here.

Agreed. I was referring to an assessment by eye.

[verpies]

Its possible that he just happened to have that particular heat sink and device(s) available from his stock and decided to use them.

It is very likely, that the choice of their cooling options and package types was determined by their "junk box availability".

I'd like to add that the choice between thyristors, transistors, and triacs would be influenced more by their operating principles than their availability in the "junk box". They just work too differently to be interchangeable (e.g. thyristors are unable to interrupt current, but BJTs can).  There are very few applications where BJTs and Thyristors work equally well.  Thyristors and Triacs are more interchangeable (especially for DC).