/diy/ - Do It Yourself

>>1690990
At least it produces light, unlike this bastard.

>>1689446
Let's assume current is OK.
But. At moment you turn on the MOSFET, you get 20+10V on gate (compares to source pin), which is above max allowed voltage on gate.
>>1689451
>stronk Rosskiy man does not need korrupt Western physics ideology or datasheet to chase bear on scooter.
MOSFETs are western lies. BJT is way to go...
No, in reality, there were only handful of transistors in soviet union, and everybody knew datasheets by heart, because there were no internet back then, and searching in books was slow.


Ok, here is an interesting question.
I found this router in recycle dumpster, and it works fine. Sure, it is old first rev DIR-300, which is like 2007 technology, but for some reason it survived.
But. Explain me this. I have 330SMD resistor (33 Ohms?) just in parallel to power jack. Why? I removed it, because it was getting hot, and I didn't had beefy power supply... What is the purpose?
Of course router kept working after removal just fine.