On Feb 17, 5:24*am, dave wrote:
wrote:
Some very sucessful high end audio
designs implement a separate power supply for EACH stage . And none of
them seem to favor switchers!

They probably don't have to buy their own electricity. *If I was still
using my 2 [ea] 9 Amp linear supplies my electric bill would be $100 a
month higher. *I got the switcher to save energy. *The fact that it is
tiny, quiet, and cool is all gravy.

There's an electric motor at a quarry, over a mile away, that has some
sparky brushes. *I can tell when they turn it on and off. *This is a
very quiet (QRM) spot.

I had exactly this same problem last week when a bunch of guys about a
half mile away were doing road work with a compressor. The noise
level from that mess was an intermittent 20 over S9, and the MFJ-1026C
had a hard time wiping it. Thank goodness they're gone.