You can tell by weight. The crappy switching types are very lightweight. No power transformer. A linear PS will have an internal iron core power transformer and those are quite heavy, specially if they are rated at 2 amps or more.
I favor medical/industrial open frame linear power supplies to any wallwart, regardless of size. Reliable, superb regulation and very high filter capacitance. It's a little more trouble to put it inside a nice enclosure but well worth it in my experience... -- crooner Customized dual chassis "Super Squeezebox" EAD DSP-7000 Series III DAC with HDCD and mods. VPI Scout with Benz Micro Glider M2 Audio Research PH3, SP16L and VS110 Vandersteen 2Ce signatures, 2W subwoofer. ------------------------------------------------------------------------ crooner's Profile: http://forums.slimdevices.com/member.php?userid=3379 View this thread: http://forums.slimdevices.com/showthread.php?t=37553 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
