In today’s electronics, switching power supplies are typically preferred due to cost, size, and efficiency.

So there you have it...more cheap crap from China, poorly made, poorly designed sold to a group of people who are too stupid to understand or care.

I had to move the AT&T modem out of my garage because it generated enough noise to effect my oscilloscope.

I am not saying that there are no good switching power supplies because there are. They are finding there way into solid state music amps. Galen Kruger offered to send me to school to learn to repair the switching power supplies.

It appears I was one of the few people in far south Florida who would work on their equipment. They wanted me to take over all warrantee work in South Florida. I AM RETIRED !!!No more work!!!...lol

Here is some more government that lets a lot of stuff slip by. The Enforcement Bureau's Spectrum Enforcement Division, in conjunction with the Regional and Field Offices, is responsible for responding to interference complaints involving FCC licensees

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”