I've noticed quite a few requests for detailed information about power supplies, mainly with quite high output voltages, from people who seem to be trying to make impossible "energy systems". What seems rather strange to me is that so many folk are hoping to turn physics upside-down, without knowing enough about electronics to design a power supply, or even to adapt something that is not just exactly what they want. Some even come asking about basic methods for increasing voltage, as if this was some great mystery. Actually, we know that it is easy enough to make contraptions which step up low voltages to dangerously high ones. This is something that some of us may have enjoyed tinkering with when young and reckless, however ill-advised it was. Perhaps if more of these jokers had done likewise, they might have learned enough about energy not to be taken in by these crackpot schemes.