Itapirkanmaa2 builds a monster power supply: I went back to my old hobby which is old radios. This time around, I decided I need proper testing and other gear. There's quite a bit of material that could be forthcoming on this field. I have accumulated lotsa stuff for "when I have time", but each of us only has some, eventually. So let's begin with getting a proper power supply. Radios of course have one built in, in one way or another, but it may not always be functioning, so having one ready "off-line" is quite useful. I could be buying a ton of cheap Chinese stuff for the power supply, BUT, and it's a really biggie BUT: they would be switching power supplies. Those will by necessity radiate extra radio frequency energy, and the suppression of those emissions may not be very effective, as the proper shielding costs money, which everyone in China would so much like to be saving. Moreover, working on radios, we do not want any of that excess radiation t...