[Elecraft] Switching vs Linear Power Supplies

[Brett gazdzinski]

One more thing that might come into play, some of the old
non switching power supplies were very robust, in that they 
could take a lightning hit and laugh at it, while switching
supplies would fry. The big transformer protects things somewhat...

I have some fero resonant power supplies that are very simple,
transformer, rectifier, a few caps, that have been in service 
for 20 years without failure.
Fero resonant supplies are very noisy though, and not in the RF way...

Brett
N2DTS