Well, there is more bad news....
I just finished testing the last of my 4x diodes.... How should i say this. I want to post the results. Well, i need to create graphs first. But 4x's may not be all that good. At least not all of them. Some are very very bad. I need to analyze the data before i can say anything conclusive tho...
Turns out, the one i killed for a lifetime test really could have been the best possible 4x.. Well, maybe i found one better (no kink at all), i thought i found another better one (again no kink and high power), but it simply died in secons while i was looking for kinks, at a current where a PHR would still struggle for a while (1-10 hours, but that's still more than seconds!).
Many of them have a low efficiency and a low kink. Those need ridiculous currents to be set to any appreciable power, that can not be had from a high efficiency PHR anyway.
I can maybe use one half or up to two thirds of 4x's at best, due to their efficiency. And at the same time i still don't know how long the "good" ones will last...
I say lets wait a bit. I am finishing up the testing of 13 4x diodes. There could be new developements in the 6x department, in the meanwhile i will prepare the testing results and do some more lifetime tests.
If it turns out they are not much better than PHRs, then i don't want to get 15 4x's instead of 6x's....